请给我一杯咖啡，两片面包（英语意思）

Give me a cup of coffee, and two pieces of bread ?

"A cup of coffee and two pieces of bread,please."点餐时可以对服务员这么说。

One cup of coffee and two pieces of bread,please.

A cup of coffee and two pieces of bread,please.
One coffee and two bread,please.(这个是比较口语化的说法，有些句法错误)

could you give me a cup of coffe and two pieces of bread, please?

Give me a cup of coffee, and two pieces of bread，please.