non-smokingWiktionary 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.+smoking词根/词干词源说明From non- + smoking. The noun is back-formed from the adjective.释义（英文）形容词 AdjectiveHaving restrictions on smoking.Using no tobacco products.名词 NounThe act of abstaining from smoking; a policy of doing so.词族相关词（2）non-smokerno smoking