There are plans to extend the no-smoking area.

现已有扩大无烟区的计划。

《牛津词典》

This floor has been designated a no-smoking area.

这楼层已定为无烟区。

《牛津词典》

Passengers are reminded (that) no smoking is allowed on this train.

旅客们请注意，本次列车禁止吸烟。

《牛津词典》

So just as no-smoking zones have expanded over the years, she suggests that city planners, for example,should consider whether their decisions might promote or hinder the development of personal relationships.

VOA: standard.2010.07.29

Instead, more than three-and-a-half minutes was spent on a report about teenage smoking - ahead of Wednesday's national no-smoking day.

BBC: By BBC News Online's Giles Wilson

But they all must display prominent no-smoking signs, or else face penalties that are far heavier than those for lighting up.

ECONOMIST: Public health

Under the ban all pubs, clubs, cafes and workplaces - any public space with a roof over it - will become no-smoking areas.

BBC: NEWS | UK | Wales | ?50 fines under new smoking ban