Never smoking and never drinking.

从不抽烟和从不喝酒。

youdao

There is plenty of evidence that "second-hand" smoke - breathed when you are in the same room as someone smoking - can be harmful, particularly to children, and some parents adopt a strategy of never smoking in their child's presence.

BBC: Warning over 'third-hand smoke'

For example, if one had never smoked or had quit smoking more than 12 months ago, one got 1 point.

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Zyban, a GlaxoSmithkline antidepressant used for smoking cessation, never took off.

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