2 sentences

1. 他的写作风格过于拘谨，缺乏灵活性。

   tā de xiě​zuò fēng​gé guò​yú jū​jǐn, quē​fá líng​huó​xìng.

   His writing style is too stiff and lacks flexibility.

   Source: Dong Chinese Dictionary

2. 我们在处理这个问题时需要一定的灵活性。

   wǒ​men zài chǔ​lǐ zhè gè wèn​tí shí xū​yào yī​dìng de líng​huó​xìng.

   We need a certain amount of flexibility when dealing with this issue.

   Source: Dong Chinese Dictionary