101.对账单
Custom: May I have my bill,please?
顾客：我能结账吗？
Saleswoman: That's $20 in all.
售货员：总共20美元。
Custom: Well,l am afraid you have made a mistake.Would you check it again, please?
顾客：恐怕你搞错了，能核查一下账单吗？
Saleswoman: Let me see.I am terribty sorry,sir.That should be $18.
售货员：我看看o非常抱歉，先生，应该是18美元。
Custom: lt doesn't matter.
顾客：没关系。
Notes:
bill n.账单