coffee和tea可数吗

　　Do you know how to work the coffee machine?

　　你会使用咖啡机吗？

　　I restrict myself to one cup of coffee a day.

　　我限制自己每天只喝一杯咖啡。

　　A cup of tea? There's nothing I'd like better!

　　一杯茶？那最好不过了！

　　Would you like a cup of tea?

　　你想喝杯茶吗？

　　I must go home and get tea for the kids.

　　我得回家为孩子们准备茶点。