Your safety belt must be fastened whenever the seat belt signs are on.

当安全带指示亮着的时候你必须系好安全带。

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Please fasten your seat belt for your own safety.

为了你们自己的安全，请系上安全带。

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How does a seat belt law affect auto safety?

安全带法律是怎样影响汽车安全的？

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How does a seat belt law affect auto safety?

安全带的法律如何影响汽车安全？

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How does a seat belt law affect auto safety?

安全带的法律如何影响汽车安全？

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