beavered
v. (海狸似地)拼命工作( beaver的過去式和過去分詞 ); 忙於(某事),勤奮工作
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.
Beaver is the fur of a beaver.
...a coat with a huge beaver collar.
大河狸領外套