non-smokerWiktionary 原文构词拆分non-前缀Used in the sense of no or none, to show lack of or failure to perform; or in the sense of not, to negate the meaning of the word to which it is prefixed.+smoker词根/词干词源说明From non- + smoker.释义（英文）名词 NounSomebody who does not smoke tobacco.A railway carriage where smoking tobacco is not permitted.词族相关词（3）non-smokingsmokersmoke