例句：

　　They are at the end of their food supply.

　　他們的食物儲備已消耗殆盡。 

　　Within three days they had exhausted their supply of food.

　　他們在三天之內(nèi)就把所有糧食吃光了。

　　His company offers a flexible packaging service for the food industry.

　　他的公司為食品工業(yè)提供靈活的`包裝服務。

　　It seems such a waste to throw good food away.

　　把好的食物扔掉似乎太浪費了。英語可數(shù)名詞一般指普通名詞中人或物的個體，能與不定冠詞a，an連用并且能夠計數(shù)的名詞，以及部分人或物的總稱，不可數(shù)名詞通常是指不能夠計數(shù)的人或物。