请勿吸烟 qǐngwùxīyān no smoking Origin Definitions Defs Strokes Stroke Words Sentences Sents 请勿 請勿 qǐngwù adverb please do not please do not; used in formal writing or signs to politely request that people refrain from an action吸烟 吸煙 xīyān verb + noun to smoke; smoking to inhale the smoke of burning tobacco (a cigarette, pipe, etc.)