6 sentences

1. 他四处奔走，为受害者鸣不平。

   tā sì​chù bēn​zǒu, wèi shòu​hài​zhě míng bù​píng.

   He traveled everywhere to voice grievances on behalf of the victims.

   Source: Dong Chinese Dictionary

2. 遇到不平的事，我们当挺身而出。

   yù​dào bù​píng de shì, wǒ​men dāng tǐng​shēn'ér​chū.

   When encountering injustice, we should stand up for what's right.

   Source: Dong Chinese Dictionary

3. 他在小说中描写了社会底层的种种不平。

   tā zài xiǎo​shuō zhōng miáo​xiě le shè​huì dǐ​céng de zhǒng​zhǒng bù​píng.

   In his novel, he depicted the various injustices suffered by those at the bottom of society.

   Source: Dong Chinese Dictionary

4. 这条小路高低不平，很难走。

   zhè tiáo xiǎo​lù gāo​dī bù​píng, hěn nán zǒu.

   This path is uneven and very difficult to walk on.

   Source: Dong Chinese Dictionary

5. 山路崎岖不平，汽车行驶得非常缓慢。

   shān​lù qí​qū bù​píng, qì​chē xíng​shǐ de fēi​cháng huǎn​màn.

   The car moved very slowly over the rugged mountain road.

   Source: Dong Chinese Dictionary

6. 想到自己受到的冷遇，他心里感到很不平。

   xiǎng​dào zì​jǐ shòu​dào de lěng​yù, tā xīn​li gǎn​dào hěn bù​píng.

   He felt very resentful when he thought about the cold reception he had received.

   Source: Dong Chinese Dictionary