Word: 草 (cǎo) 草 dictionary entry cǎo grass; straw; manuscript; draft (of a document); careless; rough Full dictionary entry for 草 Example sentences using 草 5 sentences, showing page 1 of 1. 为什么草是绿色的？ Wèishénme cǎo shì lǜsè de? Why is grass green? 草为什么是绿色的？ Cǎo wèishénme shì lǜsè de? Why is grass green? 草儿为什么是绿色的？ Cǎo ér wèishénme shì lǜsè de? Why is grass green? 草已长了根。 Cǎo yǐ zhǎngle gēn. The grass has grown roots. 这种动物以草为食。 Zhèzhǒng dòngwù yǐ cǎo wèi shí. These animals feed on grass.