But when flying forward the air passing over the blade that is advancing to the front of the helicopter (and so into oncoming air) provides more lift than the one that is retreating to the back.

但是当向前飞行时，它的旋翼将转向直升飞机的前方(如此一来，就变成朝向迎面而来的空气)，经过叶片上方的气流将比经过叶片背面的气流产生更大的升力。

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Whether you're aiming for layers of plywood or cardboard or a bale of hay, if that foot-long blade hits an Angle, it could come ricocheting back at you.

不管是几层胶合板、纸板还是一大捆干草，万一飞刀打在不平的表面上，它很可能会朝你自己反弹回来。

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It cut deep: the edge of the blade reached to the back of his throat.

这一砍砍得极深，锋刃已经触及到喉部后侧。

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Her husband, Alex Primis, said she was shot once in the left shoulder and again through the back of her shoulder blade.

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Doctors in Canada have removed a knife blade from a man's back more than three years after he was stabbed in a fight.

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Slicing in just the right spot in Blade Mode can mean the difference between getting your health back or dying a moment later.

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