High places are free of air pollution.

高处没有空气污染。

youdao

No area in the world is completely free of air pollution. We must take measures to control it.

世界没有不遭空气污染的地方，我们必须采取措施加以控制。

youdao

It is free of air-traffic congestion, has no ban on night flights and has plenty of runway space.

迪拜没有空中交通堵塞，对夜间飞行没有限制，有足够的跑道空间。

youdao

The moment he smelled the air of these places he felt like a prisoner suddenly set free.

VOA: special.2009.04.04

We, in fact, borrow oxygen or steal oxygen from the air free of charge.

我们事实上免费从空气中,借或者偷氧气。

麻省理工公开课 - 固态化学导论课程节选

It is free of air-traffic congestion, has no ban on night flights and has plenty of runway space.

ECONOMIST: Aviation

There aren't many around that're bigger fans of free over-the-air HD than us, but we're also really big fans of wireless technologies.

ENGADGET: Ask Engadget HD: Should the FCC kill DTV for better technology?

The careful, bland, risk-averse, character-free character of its on-air product is a direct result of a leadership-by-committee management culture.

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