| 单词 | 亚纲 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔archosaur〕A reptile of the subclass Archosauria, which includes the dinosaurs, pterosaurs, and the modern crocodilians.初龙，古龙，祖龙：初龙亚纲的爬行动物，包括恐龙、翼龙和现代的鳄鱼美国传统〔clasper〕A posterior extension on each of the pelvic fins of male elasmobranch fishes that aids in the transmission of sperm during copulation.交合突，鳍脚：雄性板腮亚纲鱼的每支腹鳍的前端延伸，在交配中辅助精子的传递美国传统〔copepod〕Any of numerous minute marine and freshwater crustaceans of the subclass Copepoda, having an elongated body and a forked tail.桡足动物：任一种桡足亚纲的大量海洋或淡水甲壳纲小动物，身体细长，尾部分叉美国传统〔dipnoan〕Any of various fishes of the group Dipnoi, which includes the lungfishes, characterized by modified lungs that enable them to breathe atmospheric air.肺鱼：一种属于肺鱼亚纲的鱼类，包括肺鱼，其特征为有可改变的肺，从而呼吸大气中的空气美国传统〔entomostracan〕Any of various small crustaceans formerly constituting the subclass Entomostraca.切甲类甲壳类动物：指任何原属于切甲亚纲的小型甲壳纲动物美国传统〔eutherian〕Of or belonging to the infraclass Eutheria, a division of mammals to which all the placental mammals belong.真哺乳亚纲的：关于或属于哺乳动物真兽亚纲的一个下纲，包括有胎盘哺乳动物美国传统〔infraclass〕A taxonomic category of related organisms ranking below a subclass and above an order.下纲：生物等级分类中的一个层次，在亚纲之下，目之上美国传统〔labyrinthodont〕Of or relating to the superorder Labyrinthodontia, an extinct group of amphibians resembling crocodiles and having a labyrinthine tooth structure.迷齿亚纲动物：有迷齿纲总目的动物或同迷齿纲总目有关的动物，是一群与鳄鱼相象的已灭绝两栖动物，长有结构复杂的牙齿美国传统〔lobefin〕Any of various mostly extinct bony fishes of the subclass Crossopterygii, of which the coelacanth is a living representative.总鳍鱼：内鼻孔亚纲的各种大多已灭绝了的硬骨鱼，腔棘鱼为其现存种类代表美国传统〔monogenean〕Any of various trematodes of the order Monogenea that typically pass the entire life cycle as ectoparasites on a single fish.单殖亚纲动物，单殖吸虫：任一种单殖目亚钢寄生虫，通常在一条鱼上作为寄生物度过整个生命周期美国传统〔nautiloid〕A mollusk of the subclass Nautiloidea, which includes the nautiluses and numerous extinct species known only from fossils.鹦鹉螺软体动物：鹦鹉螺目亚纲的一种软体动物，包括鹦鹉螺和不可数计的仅从化石得知的绝迹的种类美国传统〔ostracod〕Any of various minute, chiefly freshwater crustaceans of the subclass Ostracoda, having a bivalve carapace.介形亚纲动物：属介形亚纲的任一种体小的、主要生活于淡水中的甲壳纲动物，长有一对硬壳美国传统〔peritrich〕Any of various protozoans, such as the vorticella, having a wide oral opening surrounded by cilia.周毛亚纲微生物：任何一种原生动物，例如钟虫，其椭圆形阔口周围长有纤毛美国传统〔phyllopod〕Any of various branchiopod crustaceans having swimming and respiratory appendages that resemble leaves.叶足亚纲甲壳动物：一种鳃足类甲壳纲动物，具有象叶子的游水和呼吸的附肢美国传统〔phyllopod〕Of or relating to the phyllopods.叶足亚纲甲壳动物的：叶足亚纲甲壳动物的，与叶足亚纲甲壳动物有关的美国传统〔ray-finned fish〕Any of various bony fishes belonging to the subclass Actinopterygii, having fins supported by dermal rays.组织鳍鱼：属于辐鳍亚纲的各种多骨鱼之一，有由放射组织所支撑的鱼鳍美国传统〔rhizopod〕A protozoan of the phylum Rhizopoda, such as an amoeba or a radiolarian, characteristically moving and taking in food by means of pseudopods.根足虫：根足虫亚纲的一种原生动物，例如变形虫或放射虫目的根足虫，以通过伪足方式移动并摄取食物为特征美国传统〔sea hare〕Any of various small marine gastropod mollusks of the subclass Opisthobranchia having projections that resemble rabbit ears.海兔：各种小型海生后鳃亚纲腹足软件动物，有状似兔耳的突出物美国传统〔selachian〕Of or belonging to the order Selachii of elasmobranch fishes that includes the sharks and in some classifications also the rays and skates.软骨鱼的，横口鱼的，鲨类的：板鳃亚纲鲨类目的鱼类，包括鲨鱼，在某些分类中也包括鳐和灰鳐美国传统〔subclass〕Biology A taxonomic category of related organisms ranking between a class and an order.【生物学】 亚纲：在一个纲下和一个目上的生物分类的类目美国传统〔superorder〕A taxonomic category of related organisms ranking below a class or subclass and above an order.总目：介于纲或亚纲与目之间的生物分类类别美国传统〔zooflagellate〕A flagellated protist that ingests food and lacks chlorophyll.动鞭亚纲原生生物：一种有鞭毛的原生生物，它摄取食物并缺乏叶绿素美国传统 |
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