2 sentences

1. 中老年人需要定期体检。

   zhōng​lǎo​nián rén xū​yào dìng​qī tǐ​jiǎn.

   Middle-aged and elderly people need regular physical examinations.

   Source: Dong Chinese Dictionary

2. 前列腺炎是中老年男性的常见疾病。

   qián​liè​xiàn yán shì zhōng​lǎo​nián nán​xìng de cháng​jiàn jí​bìng.

   Prostatitis is a common disease among middle-aged and elderly men.

   Source: Dong Chinese Dictionary