We tried to assure the nervous old lady that flying was safe.
我们尽力说服那位紧张的老太太，使她相信乘飞机是安全的。
Flying is a particularly safe way to travel.
乘飞机是非常安全的旅行方式。
Flying is as safe as ever, don't you think?
坐飞机还是一样那么安全，你不觉得吗？
All those is the base of safe flying.
从而为保障低空飞行的安全奠定了基础。
All those is the base of safe flying.
从而为保障低空飞行的安全奠定了基础。
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