名詞 coot:

1. slate-black slow-flying birds somewhat resembling ducks

1. Poor man, he is only twenty years old, but owing to illness he is as bald as a coot.
   可憐的家伙，他只有２０歲，可是由于生病，頭頂已經(jīng)光禿禿了。
2. Jackson worked so hard in his life that he turned out bald as a coot before the age of45.
   杰克遜一生一直勤奮工作，45歲前他的頭發(fā)就已經(jīng)掉光了。

coot

n.（名詞）
Any of several dark-gray aquatic birds of the genusFulica of North America and Europe, having a black head and neck, lobed toes, and a white bill.
白骨頂：任一種原產(chǎn)于北美洲和歐洲的白骨頂屬 深灰色水鳥，頭頸均為黑色，足有瓣蹼，喙呈白色
See scoter
參見 scoter
Informal A foolish, eccentric, or senile person.
【非正式用語】 傻瓜：一個(gè)愚蠢、古怪或衰老的人

來源：
Middle English coote
中古英語 coote
possibly from Middle Dutch coet
可能源自 中古荷蘭語 coet