第一、迷你对话

A: Look! It is not working well. Did you try out the bike when you bought it.

看，这两自行车不好用，你买的时候没试用吗?

B: No, there’s no need. We can change it within two days if it’s not damaged.

是的，没有必要。如果车子有问题，没有损坏的话，可以在两天内更换。

A: But it would save a lot of trouble if you had taken it for a test ride.

但是如果你试一下的话，会省去很多麻烦。

B: I know. I will pay attention to such a thing next time.

知道了，下次我会注意的。