3 sentences

1. 手术后的切口正在慢慢愈合。

   shǒu​shù hòu de qiē​kǒu zhèng​zài màn​màn yù​hé.

   The surgical incision is healing slowly.

   Source: Dong Chinese Dictionary

2. 走江湖的人都有自己的一套切口。

   zǒu​jiāng​hú de rén dōu yǒu zì​jǐ de yī tào qiè​kǒu.

   People who live on the road have their own set of secret jargon.

   Source: Dong Chinese Dictionary

3. 这种装订方式能让书的切口非常平整。

   zhè zhǒng zhuāng​dìng fāng​shì néng ràng shū de qiē​kǒu fēi​cháng píng​zhěng.

   This binding method ensures the edges of the book are very smooth.

   Source: Dong Chinese Dictionary