2 sentences for 粗糙 (cū​cāo — rough)

1. 这种鳄的表皮非常粗糙，像是一层厚厚的铠甲。

   zhè zhǒng è de biǎo​pí fēi​cháng cū​cāo, xiàng​shì yī céng hòu hòu de kǎi​jiǎ.

   The skin of this crocodile is very rough, like a thick layer of armor.

   Source: Dong Chinese Dictionary

2. 由于长年从事体力劳动，他的双手变得非常粗糙。

   yóu​yú cháng​nián cóng​shì tǐ​lì láo​dòng, tā de shuāng shǒu biàn de fēi​cháng cū​cāo.

   His hands have become very rough due to years of physical labor.

   Source: Dong Chinese Dictionary