| 单词 | 胚胎 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔BABY〕When first formed, the embryo is only half a millimetre long. 胚胎最初形成时仅半毫米长。朗文写作活用〔PART〕We saw a video showing the second stage in the development of a human embryo. 我们看了一部人类胚胎发育第二阶段的录像片。朗文写作活用〔Wolffian duct〕The embryonic duct of the mesonephros, which in the male becomes the vas deferens and in both sexes gives rise to the ureter.沃尔夫氏管，中肾管：中肾的胚胎导管，在雄性中变成输精管，在雌雄两性中都发育成输尿管美国传统〔abort〕To cause the expulsion of (an embryo or fetus) before it is viable.使堕胎：在（胚胎或胎儿）能够成活之前导致其排出美国传统〔abort〕To cause to terminate pregnancy prematurely, before the embryo or fetus is viable.使败育：在胚胎或胎儿成活之前导致其过早停止怀孕美国传统〔abort〕To give birth before the embryo or fetus is capable of surviving on its own; miscarry.流产，早产：在胚胎或婴儿能独自存活之前就出生了；流产美国传统〔agamospermy〕The asexual formation of embryos and seeds without the occurrence of fertilization.不完全无配生殖：胚胎和种子在未经过授精情况下而进行的无性生殖美国传统〔amniote〕Any of a group of vertebrates that have an amnion during embryonic development, including reptiles, birds, and mammals.脊椎动物，羊膜动物：任一种在胚胎发育期间有羊膜的脊椎动物，包括爬行动物、鸟类和哺乳动物美国传统〔anonymous〕An attempt to implant an embryo using an egg from an anonymous woman donor was unsuccessful.用一位匿名女性捐献的卵子来植入胚胎的尝试未获成功。剑桥高阶〔aortic arch〕One of a series of paired arteries in a vertebrate embryo that connects the ventral arterial system to the dorsal arterial system.主动脉弓：脊椎动物胚胎内一系列成对的动脉之一，它将腹动脉系统与背动脉系统连结起来美国传统〔apogamy〕The development of an embryo without the occurrence of fertilization.无配子生殖：无需授精的胚胎发育美国传统〔blastema〕A mass of embryonic cells from which an organ or a body part develops, either in normal development or in the regeneration of a lost body part.胚基：身体某部分或一器官由此发育的一组胚胎细胞，或正常发育或失去的身体某部分的再生能力美国传统〔blastoderm〕The layer of cells formed by the cleavage of a fertilized mammalian egg. It later divides into the three germ layers from which the embryo develops.胚盘：由哺乳动物受精卵分裂而形成的细胞层。后期分裂为三层，胚胎由此发育美国传统〔blastoderm〕The layer of cells that develops on the surface of the yolk in an avian or reptilian egg and gives rise to the germinal disk from which the embryo develops.胚盘：鸟蛋或爬行动物卵的蛋黄表面的细胞层，胚盘由此形成，胚胎从胚盘发育美国传统〔blastomere〕Any of the cells resulting from the cleavage of a fertilized ovum during early embryonic development.分裂球：在早期胚胎发育时受精卵分裂产生的任何细胞美国传统〔cell〕Embryos grow by cell division (=the splitting of cells) .胚胎通过细胞分裂而成长。朗文当代〔chondrocranium〕A portion of the embryonic cranium forming the bones of the base of the skull and eventually undergoing ossification.软骨颅：胚胎的头颅中形成颅骨基部骨头并最终被骨化的部分美国传统〔chondrocranium〕The cartilaginous cranium of an embryo before ossification.软骨颅：胚胎在骨化作用之前的软骨性头颅美国传统〔choriocarcinoma〕A malignant tumor that develops from trophoblast cells and usually occurs in the uterus.绒毛膜癌：从胚胎滋养层细胞发展的恶性肿瘤，常见于子宫美国传统〔chorion〕The outer membrane enclosing the embryo in reptiles, birds, and mammals. In placental mammals it contributes to the development of the placenta.绒毛膜：在爬行类动物、鸟类及哺乳类动物中包含胚胎的外膜，在有胎盘哺乳动物中与胎盘的发育有关美国传统〔clone〕Experiments to try to clone human embryos have met with hostility from some sections of the public.尝试克隆人类胚胎的实验遭到了部分公众的强烈反对。剑桥高阶〔conceptus〕The product of conception at any point between fertilization and birth. It includes the embryo or the fetus as well as the extraembryonic membranes.胚胎：从受精到出生期间任一阶段产物的通称，它包括了合子或胎儿甚至胚胎膜美国传统〔contragestive〕Capable of preventing gestation, either by preventing implantation or by causing the uterine lining to shed after implantation.避孕的：通过防止胚胎植入或使子宫内膜在胚胎植入后脱落从而能够避免怀孕或妊娠的美国传统〔delamination〕Embryology The splitting of the blastoderm into two layers of cells to form a gastrula.【胚胎学】 分层，起鳞：指囊胚层分裂两个细胞层，形成一个原肠胚美国传统〔dermatome〕Embryology The part of a mesodermal somite from which the dermis develops.【胚胎学】 生皮节：中胚层体节上生长真皮的部分美国传统〔develop〕The cell then develops into an embryo.细胞然后发育成胚胎。麦克米伦高阶〔differentiate〕Biology To undergo a progressive, developmental change to a more specialized form or function. Used especially of embryonic cells or tissues.【生物学】 分化：不断发生进行的发展变化，从而结构或机能更特殊。尤其指胚胎细胞或组织的发育美国传统〔ectoderm〕The outermost of the three primary germ layers of an embryo, from which the epidermis, nervous tissue, and, in vertebrates, sense organs develop.外胚层：胚胎最初三层胚层中的最外一层，由此发育成为表皮、神经组织和脊椎动物的感觉器官美国传统〔ectomorph〕An individual having a lean, slightly muscular body build in which tissues derived from the embryonic ectoderm predominate.瘦型体质者：由胚胎胚层发育而成的组织形成的瘦型的、肌肉不发达的人美国传统〔embolic〕Embryology Of or relating to emboly.【胚胎学】 （囊胚）内陷的，或与之有关的美国传统〔embryectomy〕Surgical removal of an embryo, especially one implanted outside of the uterus.胚胎切除术：胚胎的外科切除，尤指植于子宫外的胚胎美国传统〔embryo sac〕The female gametophyte of a seed plant, within which the embryo develops.胚囊：种子植物的雌性配偶体，胚胎在其中发育美国传统〔embryo transfer〕A technique used in animal breeding in which an embryo from a superovulated female animal is transferred to the uterus of a recipient female animal.胚胎植入法：将经超促排卵母体的胚胎移植到孕母子宫的动物繁殖法美国传统〔embryo transfer〕The process in which an egg that has been fertilized in vitro is transferred into a recipient's uterus.胚胎植入，胚转移：将试管培育的胚胎植入受体子宫的过程美国传统〔embryogenesis〕The development and growth of an embryo.胚胎发生：胚胎的发展与生长美国传统〔embryology〕The embryonic structure or development of a particular organism.发生学：一种特定有机体的胚胎的结构或发展美国传统〔embryonic membrane〕Any of the membranous structures closely associated with or surrounding a developing vertebrate embryo, including the amnion, chorion, allantois, and yolk sac.胚膜：任何与发育中的胚胎相关或包围胚胎的膜状结构，包括衣胞、绒膜胚囊、尿膜和卵黄囊美国传统〔embryonic〕Of, relating to, or being an embryo.胚胎的：胚胎的、与胚胎有关的或形成胚胎的美国传统〔embryopathy〕A developmental disorder in an embryo.胚胎病：胚胎发育的紊乱美国传统〔embryo〕An organism in its early stages of development, especially before it has reached a distinctively recognizable form.胚胎：有机体的发育早期阶段，尤指还未长成独立的可分辨的形状美国传统〔embryo〕Between the eighth week of development and birth a human embryo is called a foetus.从发育第8周到出生这段时间，人类的胚胎被称作胎儿。剑桥高阶〔embryo〕Some people believe that destroying an embryo is murder.一些人认为，杀死胚胎是谋杀。牛津搭配〔embryo〕The couple has produced three embryos for implantation.这对夫妻培育了三个胚胎以供移植。牛津搭配〔embryo〕The fertilized egg of a vertebrate animal following cleavage.胚胎：卵裂后的脊椎动物的受精卵美国传统〔embryo〕Two or three embryos are implanted into the woman's body.这个妇人体内已经移植了两三个胚胎。牛津搭配〔emotive〕Embryo research is an emotive issue.胚胎研究是个容易引起激烈争论的问题。外研社新世纪〔emotive〕Embryo research is an emotive issue.胚胎研究是个容易引起激烈争论的问题。柯林斯高阶〔endosperm〕The nutritive tissue within seeds of flowering plants, surrounding and absorbed by the embryo.胚乳：开发植物种子内部的营养组织，围在胚胎周围并被胚胎吸收美国传统〔entoblast〕Any of the blastomeres of an embryo from which the endoderm develops.内胚层：指任何可生长成内胚层的胚胎分裂球美国传统〔experimentation〕Many people object to experimentation on embryos.许多人反对用胚胎做实验。牛津高阶〔fertilize〕Once an egg is fertilized by the sperm, it becomes an embryo.卵子受精后即成胚胎。剑桥高阶〔forebrain〕The most anterior of the three primary regions of the embryonic brain from which the telencephalon and diencephalon develop.前脑：大脑胚胎三个主要区域中最靠前的一个，端脑与间脑从这里发育美国传统〔freeze〕The embryos are frozen at minus 20 degrees and stored.胚胎用零下20度的温度冷冻储存。麦克米伦高阶〔homeobox gene〕One of a group of genes with a shared nucleotide segment that are involved in the formation of bodily segmentation during embryologic development.同源框基因，同源分子基因：胚胎学发展过程中身体复杂的细胞分裂，参与体节形成的共有核苷酸节段的基因组之一美国传统〔hydrocephalus〕Congenital hydrocephalus is present at birth and can result from events during the development of the foetus.先天性脑积水在出生时就已发生，可能是由于胚胎发育中的事件造成的。剑桥高阶〔hypocotyl〕The part of the axis of a plant embryo or seedling plant that is below the cotyledons.（下）胚轴：低于胚轴的一个植物胚胎或根的轴的一部分美国传统〔hypogeal〕Botany Of or relating to seed germination in which the cotyledons remain below the surface of the ground.【植物学】 地下生的，地下产生子叶的：种子萌芽的，或与之有关的，在这种萌芽里胚胎保留在地表面以下美国传统〔implantation〕The embryos were tested to determine their sex prior to implantation.在植入之前对胚胎进行了检验，以确定其性别。柯林斯高阶〔implantation〕The embryos were tested to determine their sex prior to implantation.在移植前对胚胎作了检测以确定其性别。外研社新世纪〔implant〕The embryo is implanted in the surrogate mother's womb.胚胎被移植到代孕母亲的子宫中。外研社新世纪〔individuation〕Embryology Formation of distinct organs or structures through the interaction of adjacent tissues.【胚胎学】 个体分离：通过相邻的组织间的相互作用，产生新的器官或组织结构美国传统〔inducer〕A part or structure in an embryo that influences the differentiation of another part.诱引部分：胚胎中影响其它部分分化的部分或组织结构美国传统〔intrauterine device〕A birth control device, such as a plastic or metallic loop, ring, or spiral, that is inserted into the uterus to prevent implantation.宫内避孕器：节育器，例如塑料的或金属的环、圆圈、或螺旋形物体，装入子宫以防止胚胎植入美国传统〔involution〕Embryology The ingrowth and curling inward of a group of cells, as in the formation of a gastrula from a blastula.【胚胎学】 内长：一组细胞的内部或向内生长，如从囊胚到原肠胚的生长过程美国传统〔isogenous〕Having the same or similar origin, as organs or parts derived from the same embryonic tissue.同源的：有相同或近似的本源的，如从相同的胚胎组织发展而来的器官或部分美国传统〔life history〕The history of changes undergone by an organism from inception or conception to death.生活史：有机物从初期或胚胎到死亡所经历的各种变化的历史美国传统〔long〕An eight-week-old embryo is only an inch long.8星期大的胚胎只有1英寸长。外研社新世纪〔mesomorphic〕Anatomy Having or characterized by a robust, muscular body build caused by the predominance of structures developed from the embryonic mesodermal layer.【解剖学】 具有运动型体格的：由胚胎中胚层发育而来，因结构占优势而促成健壮高大的体型的、或以此为特征的美国传统〔monozygotic〕Derived from a single fertilized ovum or embryonic cell mass. Used especially of identical twins.单卵的：由一个受精卵或胚胎细胞群而派生来的。尤指用于同卵双美国传统〔morula〕The spherical embryonic mass of blastomeres formed before the blastula and resulting from cleavage of the fertilized ovum.桑椹胚：形成于囊胚之前且处于胚胎期内的球形裂球群，由受精卵细胞的分裂而成美国传统〔myoblast〕An undifferentiated cell in the mesoderm of the vertebrate embryo that is a precursor of a muscle cell.成肌细胞：未分化细胞，在作为肌细胞前体的脊椎动物胚胎的中胚层内美国传统〔nephridium〕The excretory organ of a vertebrate embryo from which the kidney develops.原肾：脊椎动物胚胎的排泄器官，肾由此发展而来美国传统〔neural crest〕The part of the ectoderm in a vertebrate embryo that lies on either side of the neural tube and develops into the cranial, spinal, and autonomic ganglia.神经脊：脊椎动物胚胎外胚层的一部分。位于神经管的两侧，并逐步发展成头颅神经元、脊髓神经元、自主神经系统神经元美国传统〔neural tube〕A dorsal tubular structure in the vertebrate embryo formed by longitudinal folding of the neural plate and differentiating into the brain and spinal cord.神经管：脊椎动物胚胎背脊部管状结构，它由神经板纵向折叠形成，并分化为脑神经和脊髓神经美国传统〔neurulation〕The formation of the embryonic neural plate and its transformation into the neural tube.神经管形成：胚胎神经板的形成及其朝神经管的转变美国传统〔neurula〕An embryo at an early stage of development in which neurulation begins.神经轴胚：神经开始发展的早期胚胎美国传统〔notochord〕A similar structure in embryos of higher vertebrates, from which the spinal column develops.脊索：更为高等的脊椎动物胚胎中的类似结构，脊椎骨由此发育美国传统〔optic vesicle〕An evagination on either side of the embryonic forebrain from which the optic nerve and retina develop.眼泡：脊椎动物胚胎前脑外的侧壁向外胀出的部分，从这里发育成视神经和视网膜美国传统〔palingenesis〕Biology The repetition by a single organism of various stages in the evolution of its species during embryonic development.【生物学】 重演（性）发生；重演（性）变态：单个的有机体在物种的发展过程中在胚胎发展中所经历的不同阶段的重复演变美国传统〔principally〕Embryonic development seems to be controlled principally by a very small number of master genes.胚胎发育似乎主要受制于少数主导基因。柯林斯高阶〔proctodeum〕An inward fold on the surface of the embryonic ectoderm that develops into part of the anal passage.原肛肛道：胚胎消化道表面的凹陷，发育成直肠的一部分美国传统〔recapitulate〕Biology To appear to repeat (the evolutionary stages of the species) during the embryonic development of the individual organism.【生物学】 重演：在个体有机体胚胎培育发展中重现（物种进化的过程）美国传统〔serosa〕The chorion of a bird or reptile embryo.绒毛膜：鸟或爬行类胚胎的绒毛膜美国传统〔somite〕A segmental mass of mesoderm in the vertebrate embryo, occurring in pairs along the notochord and developing into muscles and vertebrae.体节：脊椎动物胚胎中胚层中的体节物质，沿脊索成对出现，后生长成肌肉或脊椎美国传统〔spongioblast〕Any of the embryonic epithelial cells that give rise to the neuroglia.成胶质细胞，无轴索细胞：一种胚胎上皮细胞，生成胶质神经美国传统〔stomodeum〕The anterior or oral portion of the alimentary canal of an embryo.口道：胚胎的消化道的前端或口部美国传统〔triploblastic〕Having three germ layers. Used of the vertebrate embryo.三重胚的：具有三层原胚层的。用于脊椎动物的胚胎美国传统〔troubling〕Some troubling questions remain about the legal status of frozen embryos.关于冷冻胚胎的法律地位，仍然存在一些令人忧虑的问题。剑桥高阶〔union〕An embryo is created through the union of sperm and egg.胚胎是由精子和卵子结合而成的。韦氏高阶〔viable〕From those ten eggs they made three viable embryos.他们从这10个卵子中培育出了3个能自行生长发育的胚胎。外研社新世纪A human embryo up to the age of 14 days is sometimes called a pre-embryo.十四天之前的人的胚胎有时称做前胎儿。剑桥国际An attempt to implant an embryo using an egg from an anonymous woman donor was unsuccessful.用取自一位匿名女性提供的卵子移植胚胎的尝试未获成功。剑桥国际At seven weeks, an embryo is recognizably human.七周时，胚胎可看出呈人形。剑桥国际Exposure to radiation can lead to malformation of the embryo.辐射会导致胚胎畸形。剑桥国际Some troubling questions remain about the legal status of frozen embryos.仍有一些令人忧虑的关于冷冻胚胎的法律地位的问题。剑桥国际The differentiation of the fetal organs occurs in the first few weeks after fertilization.胚胎器官的变异发生在受精后的头几个星期。剑桥国际The embryo was implanted successfully, but she miscarried eight weeks into the pregnancy.胚胎被成功地植入，但她怀孕八个星期就流产了。剑桥国际The embryonic phase begins when the egg is fertilized and ends when the animal hatches or is born.胚胎阶段始于卵受精时，结束于幼儿被孵化或生产时。剑桥国际The ultrasound scan helps to determine the age of the foetus as well check for hereditary abnormalities.超声波扫描既有助于检查遗传性变态又有助于确定胚胎的年龄。剑桥国际They are doing research on the developmental processes in the embryo.他们在研究胚胎内部的发育过程。剑桥国际 |
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