settle up
phrasal verb with settle verb uk/ˈset.əl/ us/ˈset̬.əl/
结账;付清欠款
to pay someone the money that you owe them
Would you like to settle up now, sir? 先生，您想现在结账吗？
You buy the tickets and I'll settle up with you later. 你来买票，过后我把钱给你。