bāng biérén mǎi dōngxi huò xūyào bàoxiāo shí, kěyǐ ràng shōuyínyuán fēnkāi jiézhàng

帮别人买东西或需要报销时，可以让收银员分开结账。

When shopping for someone else or needing reimbursement, you can ask the cashier to ring them up separately.