手术进行了几个小时，之后医生高兴地走了出去，说：“谢天谢地！你的儿子得救了！”然后不等病人父亲回应，他边向前跑边说：“如果你有任何问题，问护士。”

The surgery took some hours after which the doctor went out happy, "Thank goodness! Your son is saved!" And without waiting for the father's reply he carried on his way running by saying, "If you have any questions, ask the nurse."

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因此在向前飞行时，旋转叶片可以在每一边产生相同大小的升力来进行机身的平衡。

So in forward flight each rotor can produce an equal amount of lift on each side, thus providing balance.

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他向前坐起来，扬起一边的眉毛。这是他能做出来的最接近于同情的表情。

He sat forward, one of his eyebrows raised in a look that was as close as he came to compassion.

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