3 sentences

1. 他的表演充满了本色，没有一点儿做作。

   tā de biǎo​yǎn chōng​mǎn le běn​sè, méi​yǒu yī​diǎn r zuò​zuo.

   His performance was very natural and free of affectation.

   Source: Dong Chinese Dictionary

2. 这件衣服洗掉了染料，露出了布料的本色。

   zhè jiàn yī​fu xǐ diào le rǎn​liào, lù​chū le bù​liào de běn​shǎi.

   The dye washed out of the garment, revealing the original color of the fabric.

   Source: Dong Chinese Dictionary

3. 即使在城市生活多年，他依然保持着劳动人民的本色。

   jí​shǐ zài chéng​shì shēng​huó duō nián, tā yī​rán bǎo​chí zhe láo​dòng rén​mín de běn​sè.

   Even after living in the city for years, he still maintains the true qualities of a working person.

   Source: Dong Chinese Dictionary