3 sentences

1. 把这两个调换一下。

   bǎ zhè liǎng gè diào​huàn yī​xià.

   Switch these two around.

   Source: OpenSubtitles

2. 为了看清楚黑板，他跟同桌调换了座位。

   wèi​le kàn qīng​chu hēi​bǎn, tā gēn tóng​zhuō diào​huàn le zuò​wèi.

   He swapped seats with his deskmate to see the blackboard better.

   Source: Dong Chinese Dictionary

3. 如果尺寸不合适，可以在一周内调换。

   rú​guǒ chǐ​cun bù hé​shì, kě​yǐ zài yī zhōu nèi diào​huàn.

   If the size is not right, it can be exchanged within a week.

   Source: Dong Chinese Dictionary