To generate lift, a bird has merely to tilt its wings, adjusting the flow of air below and above them.

为了产生抬升力，鸟儿们只要倾斜翅膀，对从身体上方和下方通过的气流稍作调整。

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Flying fish rely on a similar flow of accelerated air from their pectoral fins to provide lift to their smaller pelvic fins.

同样，飞鱼借助胸鳍所产生的加速气流，就可以对较小的腹鳍产生一定的提升作用。

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Light's new trick is fancier than a boring push: It created the more complicated force called lift, evident when a flow in one direction moves an object perpendicularly.

但是光的新特性比单纯的推力要高级：光能产生这种更复杂的作用力-提拉力，很显著的例子是一个方向的光通量可以使物体垂直移动。

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In the interim, Wellpoint and UnitedHealth sell at 10 times earnings, 10 times free cash flow, lift their dividends, buy back stock and do add-on deals.

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Sprouse and others theorized in the early 1990s that drugs that blocked these self-defeating autoreceptors could create a faster impact by causing an immediate, long-lasting flow of serotonin that would lift a patient's mood in days.

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He realized that he was bleeding horribly soon he might be completely empty and he told the fireman to lift his right arm up into the air, so that it would not all flow out onto the earth.

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