n.牛肉；肌肉；力气；牢骚
v.抱怨；告发；加强
Do you like stewed beef?你喜欢吃炖牛肉吗?
Africa is exporting beef to Europe.非洲向欧洲出口牛肉.
He's got plenty of beef.他肌肉发达.
My beef is that it took too much time.我的抱怨是太花时间了.
用作动词 (v.)
He is forever beefing about that.他没完没了地为那事抱怨.
We need new young players to beef up the team.我们需要新的队员来加强球队的实力.