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。

youdao

Much of the time, the fins are sliced off with a blade at sea and the bloody shark torso thrown back in the water to die.

大多数时候，人们在海上用刀把鱼鳍割下来，然后便将血淋淋的鲨鱼躯干扔入海里，任由它们死去。

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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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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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He struggled to breathe against the dextrorotated pressure of his ribs, stretching farther and farther to the side, very early one morning, until he felt a flat pop in the upper part of his back and then pain beyond naming somewhere between his shoulder blade and spine.

NEWYORKER: Backbone

If a surgeon used a scalpel enhanced with Smart-Tool technology, the real-time sensor on the blade could sense what kind of tissue it is touching and rely the information back to the doctor.

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