| 释义 |
mute swann.（名词）- A white swan(Cygnus olor) native to Europe and Asia and widely introduced elsewhere, having an orange bill with a black knob at the base and being much less vocal than most swans. 哑天鹅：一种原产于欧洲和亚洲并且大范围地传入其他地方的白色天鹅（疣鼻天鹅） ，喙为黄色，根部有一个黑色的圆形突起，比大多数天鹅鸣叫少得多
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