unhealthyadj.
英 ʌn'helθɪ | 美 ʌn'hɛlθi
中文adj. 不健康的；危险的；有害身心健康的
词根词源
unhealthy (adj.)1590s, "injurious to health," from un- (1) "not" + healthy (adj.). Earlier unhealthsome (1540s), unhealthful (1570s). Of persons, "sickly," it is attested from 1610s. Related: Unhealthily.
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