2 sentences

1. 由于换季，商店里的衣服都在打折扣。

   yóu​yú huàn​jì, shāng​diàn lǐ de yī​fu dōu zài dǎ​zhé​kòu.

   Due to the change of season, the clothes in the store are all discounted.

   Source: Dong Chinese Dictionary

2. 如果不能保证质量，你的信誉会大打折扣。

   rú​guǒ bù néng bǎo​zhèng zhì​liàng, nǐ de xìn​yù huì dà dǎ​zhé​kòu.

   If quality isn't guaranteed, your reputation will be greatly compromised.

   Source: Dong Chinese Dictionary