4 sentences

1. 他被迫不断地变换身份。

   tā bèi​pò bù​duàn de biàn​huàn shēn​fèn.

   He was forced to change his identity constantly.

   Source: CCMatrix

2. 云朵不停地变换着。

   yún​duǒ bù​tíng​de biàn​huàn zhe.

   The clouds are constantly changing.

   Source: CCMatrix

3. 不要害怕变换话题。

   bù​yào hài​pà biàn​huàn huà​tí.

   Do not be afraid to change the subject.

   Source: CCMatrix

4. 如果非常频繁地变换任务，他们的表现就不佳。

   rú​guǒ fēi​cháng pín​fán de biàn​huàn rèn​wu, tā​men de biǎo​xiàn jiù bù​jiā.

   If they change tasks very often, they do not perform well.

   Source: CCMatrix