重要词汇
1 take care of 保管；照顾
take care of the baby
照顾宝宝
Don't worry about me,I can take care of myself.
不要担心我，我会照顾自己。
take good care of..
好好照顾..;爱惜
You sbould take good care of your books.
你应该好好爱惜你的书。
2 receipt 收据
Do you need a receipt?
你需要收据吗？

A:If it isn't suitable,can I bring it back?
如果不合适的话，我能退货吗？
B:Of course.But you must take care of your receipt.
当然可以。只是你一定要保管好收据。
A:Can you explain it more to me?
可以多给我解释一下吗？
B:Ok.It can be refunded if there's something wrong with it.Return your purchase within 14 days for a full refund.
好的，如果质量有问题，可以退货。购买14天内可以退全款。
A:By the way,may I have another brand instead?
顺便问一下，可以换另一种牌子吗？
B:Certainly.But you can only change it for goods with the same price or lower.
当然了，但你只能调换成同等价位或者较低价位的商品。
A:I see.I'll take it.
我明白了，我买下了。