套票

yǐ shòu tào piào gài bù tuì huàn

已售套票，概不退换。

These sold tickets will not exchange.

tào piào shǐ yòng bù shòu jié jià rì xiàn zhì

套票使用不受节假日限制。

Set tickets are good for every holiday.

wǒ shōu jí le hěn duō tào piào

我收集了很多套票。

I have collected many sets of stamps.