我想要一个巧克力冰淇淋用英语怎么说？

I'd like a chocolate ice cream

I would like a chocolate ice cream.

I would like a chocolate ice cream.
或I want a chocolate ice cream.

这句话在不同的场合说法也不同的。如果是聊天说到自己的愿望，你可以说I want a chocolate ice cream.

如果你是和营业员说，想要买这个的时候，应该是 Can I have a chocolate ice cream? please.

Can I have a chocolate ice cream? please.