So caveat emptor, let the buyer beware.

所以货物售出概，购买只能自己上心。

And the pet store didn't have a grace period or a return policy or anything?

宠物店就没个宽限包之类的吗？

The salesman says with a laugh, " No way! All sales are final" !

" 可能！概（All sales are final）！"

Okay, great, and what is the return policy?

行吧 挺好 那条件是什么?

The store’s policy is not to allow returns or exchanges.

【exchange】该商店的规定是商品概。

Which phrase makes you feel more comfortable: " All sales final, " or " Money-back guarantee" ?

哪个词组让你感觉更舒服：“恕”还是“款保证”？

The rail operator said that it has also improved policies on freight and changing train tickets during the Spring Festival rush.

国铁集团还改进了火车票购票和政策，以更好地方便春运间的出行。