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3.minute sedentary marine invertebrate having a saclike body with siphons through which water enters and leaves.
微小的不移栖的无脊椎动物,它们的身体呈囊状并带有可吸进和吐出水的虹吸管。收藏指正
5.systematic zoology;
动物分类学收藏指正
7.invertebrate paleontology
8.(zoology) undergoing metamorphosis.
(生态)经历变形阶段的。收藏指正
9.benthic macro-invertebrate
10.Institute of zoology
动物研究所收藏指正
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