coffee和tea可數嗎

Do you know how to work the coffee machine?

你會使用咖啡機嗎？

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？那最好不過了！

Would you like a cup of tea?

你想喝杯茶嗎？

I must go home and get tea for the kids.

我得回家為孩子們準備茶點。