| 单词 | 绒羽 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔down〕The bird was plucking at the down under her wings.鸟啄理着翅膀下的绒羽。英汉大词典〔penna〕A contour feather of a bird, as distinguished from a down feather or a plume.表羽：区别于软绒羽或正羽的鸟的外廓羽毛美国传统〔plumule〕A down feather.绒羽美国传统 |
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