英语中用口语表达买单结账的短语有：

Could I have the check, please?　= Can I have the bill, please?= Would you please bring me the check？

请给我账单，好吗？check n. （餐厅的）账单，发票

Bill, please.= Check. please.

请结账。

It's on me.= Let me get it.= Let me take care of it.= Let me have the check/bill.

我来付钱。

This is my round.

轮到我来付钱了。

I'II pay for drinks.

我来付酒水的钱。

Be my guest.= This is my treat.= I'll treat you.

我请客。

Separate bills, please.= We want separate bills.

请把账单分开

Please bill me later.

请过会儿开账单给我。

May I have a receipt, please?

能开一张收据吗？

I'd like to have the invoice.

我想要发票。