导购口语:

I think there will be a charge since the warranty has expired.

我想我还是要收费的，因为保修单已经过期了。

Well, you can leave it here for repairing, but there will be a charge.

好的，您可以把它放在这儿修理，但要收费。

There is a charge for the repair, so will it be all right?

我们要收取维修费，可以吗？

字句解析:

The warranty has expired 保修单已经过期；there will be a charge需要收费。

情景再现:

I'm afraid they are not at the same price. The balance is eighty yuan.

不过恐怕它们价格不同，得再付80元。