我要了一杯啤酒，一个三明治。

I ordered a beer and a sandwich.

《牛津词典》

为了确定风险，医生可以问患者两个简单的问题。第一，你喝完一杯啤酒后会脸红吗？

To determine risk, doctors can ask their patients two simple questions. First, do you flush after drinking a glass of beer?

youdao

我可以请你喝一杯啤酒吗？

May I buy you a glass of beer?

youdao

everybody was happy, everybody was smiling and laughing, almost everybody had a beer in their hand.

每个人都很开心，每个人都在笑，几乎每个人都手拿一杯啤酒。

哥伦比亚的氛围 - SpeakingMax英语口语达人

It's a, I think it's $1.75 for a beer.

我记得是一杯啤酒1.75美元。

交新朋友的方法 - SpeakingMax英语口语达人