Please remain seated and keep your seat belts fastened.

请坐好并系好安全带。

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Please keep your seat belts fastened until the captain has turned off the scat belt sign.

机长将安全带信号熄灭后才能将你的安全带解开。

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To be safe, you should bring your seat backs to an upright position and keep your seat belts fastened during take-off and landing.

为了安全起见，在飞机起飞和着陆时，您应将座椅靠背调直，系好安全带。

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And while drivers and passengers alike in large motor homes are supposed to keep their seat belts fastened on the road, it's not uncommon to find someone in back reaching for cold refreshments, spreading maps out on a table - even taking a nap, fully reclined!

VOA: standard.2010.03.01