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Ray wouldn't hurt a fly.

雷很温柔善良。

《柯林斯英汉双解大词典》

Naturally occurring radiation varies depending on factors like local geology and altitude. People are exposed to additional radiation when they get an X-ray or fly in an airplane.

正常情况下的辐射量也随地理环境、海拔等因素变化。当受到X射线辐射或坐飞机时，人们就会受到额外辐射。

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But Transport Secretary Ray LaHood has warned 787s will not fly again until he is "1, 000% sure" they are safe.

BBC: Boeing 'set to offer plan to fix Dreamliner battery'