4 sentences

1. 她虽然穿着朴素，但显得很有气质。

   tā suī​rán chuān​zhe pǔ​sù, dàn xiǎn​de hěn yǒu qì​zhì.

   Although she dresses simply, she has a very elegant temperament.

   Source: Dong Chinese Dictionary

2. 杀人偿命，这是古代朴素的正义观。

   shā​rén cháng mìng, zhè shì gǔ​dài pǔ​sù de zhèng​yì guān.

   A life for a life—this was a simple concept of justice in ancient times.

   Source: Dong Chinese Dictionary

3. 她穿着朴素，从不佩戴华丽的首饰。

   tā chuān​zhe pǔ​sù, cóng bù pèi​dài huá​lì de shǒu​shì.

   She dresses simply and never wears flashy jewelry.

   Source: Dong Chinese Dictionary

4. 尽管生活富裕了，他依然保持着朴素的作风。

   jǐn​guǎn shēng​huó fù​yù le, tā yī​rán bǎo​chí zhe pǔ​sù de zuò​fēng.

   Despite his wealth, he still maintains a simple lifestyle.

   Source: Dong Chinese Dictionary