The air was clean and fresh.

空气清新干净。

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We should keep the air clean and fresh and keep our bodies clean.

我们应该保持空气清洁和新鲜，保持身体干净。

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We should keep the air clean and fresh that will be good for our health.

我们应该持续空气清洁和新鲜的对我们的健康有好处。

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Brand-rash is caused by not keeping the basic brand attributes clean and fresh.

FORBES: Does Your Brand Have Diaper Rash?

Overall, it seems like a simple, clean and fresh reading experience.

ENGADGET: New York Times for Windows 8 hands-on (video) Hands-on

She left the room, threw the dirty sheet in the laundry chute, and got a clean gown and fresh bedding from the supply closet.

NEWYORKER: The Visitor