5 sentences

1. 我没有拆开信封。

   wǒ méi​yǒu chāi kāi xìn​fēng.

   I didn’t open the envelope.

   Source: CCMatrix

2. 把这台发动机拆开来看看是什么毛病。

   bǎ zhè tái fā​dòng​jī chāi kāi lái kàn​kan shì shén​me máo​bing.

   Take this engine to pieces and see what's wrong with it.

   Source: UM-Corpus: Spoken

3. 你真的应该在你爸爸回来前拆开那些信。

   nǐ zhēn​de yīng​gāi zài nǐ bà​ba huí lai qián chāi kāi nà​xiē xìn.

   You should really open those letters before your father gets back.

   Source: OpenSubtitles

4. 它们被拆开再以一种新的方式重新组合在一起。

   tā​men bèi chāi kāi zài yǐ yī​zhǒng xīn de fāng​shì chóng​xīn zǔ​hé zài​yī​qǐ.

   They are taken apart and put back together again in a new way.

   Source: CCMatrix

5. 他把摄影机带回酒店的房间，并把它拆开又重新装好。

   tā bǎ shè​yǐng​jī dài huí jiǔ​diàn de fáng​jiān, bìng bǎ tā chāi kāi yòu chóng​xīn zhuāng hǎo.

   He took the camera back to his hotel room and dismantled and reassembled it.

   Source: CCMatrix