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This new plane is undergoing safety tests.

这架新型飞机正在接受安全试验。

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It's not a safety issue regarding the plane, it's a safety issue to do with the passengers.

这不是一个关乎飞机安全的问题，而是关乎乘客安全的问题。

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Pilots carry wide-ranging authority when it comes to safety onboard the plane, said Rader, the American Airlines spokeswoman.

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Officers now provide critical life safety functions during plane incidents, from firefighting and passenger rescue to basic medical support and assisting in water rescues.

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The board has not so far said the battery problem would endanger the safety of the plane in flight nor recommended that the planes be grounded.

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