2 sentences for 换班 (huàn​bān — change shift)

1. 我们每个星期换班一次。

   wǒ​men měi gè xīng​qī huàn​bān yī cì.

   We change shifts once a week.

   Source: Dong Chinese Dictionary

2. 换班的卫兵已经到了，他终于可以下岗了。

   huàn​bān de wèi​bīng yǐ​jīng dào le, tā zhōng​yú kě​yǐ xià​gǎng le.

   The relief guard has arrived, so he can finally go off duty.

   Source: Dong Chinese Dictionary