small change

零钱

I dropped some small change into the collecting tin.

我把一些硬币投进募捐罐里了。

The trouble with the new pound coins is that you think you've only got a pocketful of small change but in fact it's worth several pounds.

新发行的一英镑硬币给人造成的麻烦是，你以为你只有一口袋零钱，但实际上，那值好几英镑。