| 单词 | free-swimming |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔holoplankton〕Plankton that remains free-swimming through all stages of its life cycle.终生浮游生物：一种在其生命的所有阶段可自由游动的浮游生物美国传统〔medusa〕The tentacled, usually bell-shaped, free-swimming sexual stage in the life cycle of a coelenterate, such as a jellyfish.水螅水母：有触手的，通常呈带状的，生命周期中有性阶段自由游动的腔肠动物，如水母美国传统〔myxamoeba〕A slime mold at a stage when it is an amoebalike free-swimming cell and before it fuses to form a plasmodium.粘变形体，变形细菌：某一阶段的粘霉菌，当它是一个象变形虫自由游动的细胞和在它融合形成变形体之前美国传统〔nauplius〕The free-swimming first stage of the larva of certain crustaceans, having an unsegmented body with three pairs of appendages and a single median eye.无节幼体：某种甲壳类动物的幼虫的能自由游泳的第一期，有一未断节的身体，三对附肢和一只中眼美国传统〔planula〕The flat, free-swimming, ciliated larva of a coelenterate.浮浪幼体：腔肠动物其扁平的，能自由浮游的，有纤毛的幼体美国传统〔scallop〕Any of various free-swimming marine mollusks of the family Pectinidae, having fan-shaped bivalve shells with a radiating fluted pattern.扇贝：任一种扇贝科海洋软体动物，能自由游动，生有辐射状扇状双壳美国传统〔scyphistoma〕A larva of a scyphozoan, consisting of an elongated and deeply constricted polyp that successively splits off minute, free-swimming medusas.钵口幼虫，螅状幼体：钵水母的幼虫，包括一只伸长的、深深收紧的水螅虫，它能够非常成功地分割开微小的，自由游荡的水母美国传统〔trochophore〕The small, free-swimming, ciliated aquatic larva of various invertebrates, including certain mollusks and annelids.担轮动虫：多种水生无脊椎动物，体型很小能自由游动的、有纤毛的幼虫，包括某些软体动物和环节动物的幼虫美国传统 |
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