吸二手烟 xī'èrshǒuyān secondhand smoke Origin Definitions Defs Strokes Stroke Words Sentences Sents 吸 xī verb to inhale To breathe in or suck in gases or liquids through the mouth or nose; the opposite of 呼 hū.二手烟 二手煙 èrshǒuyān noun secondhand smoke Smoke that is inhaled by people who are not themselves smoking