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【答案】例文:
S(店员): Excuse me! Can I help you?
C(客人): Yes.I want some fruit. How much are these apples?
S(店员): They are 5 yuan each kilogram.
C: That's too expensive! What about these pears?
S: 3 yuan each kilogram.
C: Ok, I will buy a few pears. How much are these pears?
S: 3 kilograms in tatal, so you have to pay 9 yuan.
C: Here you are, 10 yuan.
S: Here is your change, thank you. Bye.
C: Bye!
【解析】
略