柯林斯詞典passive smoking 1. N-UNCOUNT Passive smoking involves breathing in the smoke from other people's cigarettes because you happen to be near them. 被動吸煙 ...the dangers of passive smoking. ...被動吸煙的危害。 返回 passive smoking劍橋詞典the unwanted breathing in of other people's cigarette smoke , especially by people who do not smoke 被動吸煙，吸二手煙 Doctors say passive smoking has caused his lung cancer . 醫(yī)生說被動吸煙導致他患上了肺癌。 返回 passive smoking