我不得不把衬衫寄回去，因为它不合身。

I had to ___send the shirt ___back because it didn't fit me.

如果衣服不合身，你可以轻松地寄回去。

If clothes don't fit, you can easily ___send them ___back.

顾客可以将损坏的物品寄回退款。

Customers can ___send damaged items ___back for a refund.