Word: 有害 (yǒuhài) 有害 dictionary entry yǒuhài destructive; harmful; damaging Full dictionary entry for 有害 Example sentences using 有害 2 sentences, showing page 1 of 1. 它对你的眼睛有害。 Tā duì nǐ de yǎnjing yǒuhài. It's really bad for your eyes. 缺少运动有害健康。 Quēshǎo yùndòng yǒuhài jiànkāng. A lack of exercise is bad for your health.