beaver

1. N-COUNT A beaver is a furry animal with a big flat tail and large teeth. Beavers use their teeth to cut wood and build dams in rivers. 海狸

2. N-UNCOUNT Beaver is the fur of a beaver. 海狸毛皮[oft N n]

...a coat with a huge beaver collar. …一件带有大海狸毛皮领的大衣。

3. N a movable piece on a medieval helmet used to protect the lower part of the face (中世纪武士用的)头盔面甲

4. V to work industriously or steadily 勤奋工作