richfood是不是可數(shù)名詞

　　例句：

　　Enjoy your food.

　　用餐愉快。

　　It's not like you to be off your food.

　　胃口不好，這可不像你了。

　　Developments in your career may give you food for thought.

　　事業(yè)上的發(fā)展可能會引發(fā)你很多的思考。

　　Supplies of food and medicines are inadequate

　　食物和藥品供應不足。