"I have a gripe about the service here"
"What was he hollering about?"
误 The beef is rich proteins.
正 Beef is rich in proteins.
他雇了两个身强力壮的人当保镖。误 He has hired as his bodyguards two men with plenty of beefs.
正 He has hired as his bodyguards two men with plenty of beef.
析beef作“牛肉”“肌肉”“肌力”解时是不可数名词,不可加-s。
我晚饭吃的牛肉味道很好。误 Beef I had at supper was very delicious.
正 The beef I had at supper was very delicious.
析beef带有限制性定语从句,属特指,须加定冠词。