I′d lⅰke什么 eαt α sandwⅰch？

I'd like to eat a Sandwich.
我想吃一个三明治。
would like to do something 意思是想做某事，是一个固定结构。

I'd like to eat a sandwich.

注
would like to do sth
想做某事

I 'd like to eat a sandwich.
我想吃一份三明治。