| 单词 | family pennatulidae |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔sea feather〕Any of several anthozoans of the family Pennatulidae, having a featherlike shape formed by an elongate shaft with paired lateral pinnules.海羽：任一种海鳃目科中的珊瑚虫，成对侧生的羽枝形成其羽毛状的体形美国传统 |
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