3 sentences

1. 别那样贬低她。

   bié nà​yàng biǎn​dī tā.

   Don't put her down like that.

   Source: OpenSubtitles

2. 在背后贬低同事是不道德的行为。

   zài bèi​hòu biǎn​dī tóng​shì shì bù​dào​dé de xíng​wéi.

   Belittling colleagues behind their backs is unethical behavior.

   Source: Dong Chinese Dictionary

3. 我们不应该贬低传统文化在现代社会中的作用。

   wǒ​men bù yīng​gāi biǎn​dī chuán​tǒng wén​huà zài xiàn​dài shè​huì zhōng de zuò​yòng.

   We should not downplay the role of traditional culture in modern society.

   Source: Dong Chinese Dictionary