Y: I put in two quarters for a coke, but nothing came out of the machine.

Y:我投入两个25美分的硬币要买一罐可乐，但没有可乐出来。

X: Really? Let me check it.

X:真的?我来检查一下。

Y: I'm sure it's broken.

Y:我确信这部机器出故障了。

X: No, ma'am. I'm afraid you put in only one quarter and one dime.

X:女士，不是的。恐怕你投入了一个25美分的硬币和一个10美分的硬币。