beef不可数。beef主要用作名词和动词，作名词时中文意思是：牛肉; 抱怨; 牢骚。作动词时中文意思是：抱怨，告发；发牢骚；养；加强。
一、beef词态变化
第三人称单数： beefs
现在分词： beefing
过去式： beefed
二、beef双语例句
1.The smell of roast beef permeated the air
空气中弥漫着烤牛肉的香味。
2.The nation also exports beef
该国也出口牛肉。
3.They bought so much beef that some went bad.
他们买了太多牛肉，有些都变质了。
4.What's his latest beef?
他最近在抱怨什么？
5.Both sides are still beefing up their military strength.
双方仍在增强各自的军事力量。
6.The government continues to subsidize the production of eggs and beef.
政府继续出资扶持鸡蛋和牛肉的生产。
7.Beef now costs well over 30 roubles a pound
牛肉现在卖到了每磅30多卢布。
8.He carved the joint of beef.
他切开了那一大块烤牛肉。
