beef是不可数名词。
例句：
Kenyas beef comes from the zebu cattle.
肯尼亚的牛肉是瘤牛肉。
They serve the most delicious roast beef.
他们做最美味的烤牛肉。
扩展资料
The smell of roast beef permeated the air.
烤牛肉的气味弥漫在空气中。
Japan is the biggest importer of U.S. beef.
日本是美国牛肉的最大进口国。
Thick tuna steaks are eaten rare, like beef.
厚厚的金枪鱼片要半熟吃，就像牛肉一样。
