Do what you can to avoid air pollution.

做一切你能做的以避免空气的污染。

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Don't stay with stale air and avoid air pollution.

不要住在不通风或空气流通不好的室内，避免空气污染。

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Allow users to avoid locations and times of day when air pollution is worst.

使用户可以避开空气污染最严重的地区和时间。

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Because of the smoke, ash and winds, people in affected areas were urged to be cautious and to avoid unnecessary outdoor activities, the Ventura County Air Pollution Control District said.

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You will end up with less gasoline than you paid for, and that would also contribute to the air pollution problem that summer gasoline was designed to avoid.

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