smok‧ing S2 / sməʊkɪŋ $ smoʊk- / 名词 [不可数名词]

the activity of breathing in tobacco smoke from a cigarette, pipe etc

stop/quit/give up smoking

I gave up smoking nearly ten years ago.

The sign says ‘No Smoking’.

a no smoking area

the risks of passive smoking (= breathing in smoke from other people’s cigarettes )