| 单词 | excretory organ |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔kidney〕An excretory organ of certain invertebrates.肾：某些无脊椎动物的排泄器官美国传统〔nephridium〕A tubular excretory organ in many invertebrates, such as mollusks and earthworms.肾管：许多脊椎动物，比如软体动物和蚯蚓的管状排泄器官美国传统〔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 |
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