4 sentences

1. 他这一生经历了许多颠簸。

   tā zhè yī​shēng jīng​lì le xǔ​duō diān​bǒ.

   He has experienced many ups and downs in his life.

   Source: Dong Chinese Dictionary

2. 飞机遇到强气流，发生了剧烈的颠簸。

   fēi​jī yù​dào qiáng qì​liú, fā​shēng le jù​liè de diān​bǒ.

   The plane encountered strong turbulence and experienced severe jolting.

   Source: Dong Chinese Dictionary

3. 路面上有一道深坎，骑自行车时很颠簸。

   lù​miàn shàng yǒu yī dào shēn kǎn, qí zì​xíng​chē shí hěn diān​bǒ.

   There is a deep dip in the road, making it very bumpy to ride a bicycle.

   Source: Dong Chinese Dictionary

4. 飞机在降落过程中遇到了强气流，产生了剧烈的颠簸。

   fēi​jī zài jiàng​luò guò​chéng zhōng yù​dào le qiáng qì​liú, chǎn​shēng le jù​liè de diān​bǒ.

   The plane encountered strong air currents during landing, causing severe turbulence.

   Source: Dong Chinese Dictionary