即使是前肢发育不全的羽毛也能扩大手臂的表面积，以略微提高升力。

Even rudimentary feathers on forelimbs could have expanded the arm's surface area to enhance lift slightly.

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Rovio将获利于许可协议，而且能扩大自己的品牌影响。 另一方面，世界之窗将由于官方认可得以宣传其可信性。

Rovio would generate profits from a licensing deal and expand its brand, and Window of the World would be able to boast the credibility an official endorsement would bring.

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开源可以加速接受的过程，因为(对用户的)入门门槛更低，也能促进社区的扩大，这些是好处。

Open source has the benefit of fast adoption because it lowers entry barriers (for users) and fosters a large community, which is goodness.

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It has grown enormously and really provides a way for students who have creative innovative ideas about how they could create social change, and the Pay Center works with them and tries to implement those ideas.

现在它的规模扩大了很多，真正能帮助,有创新思想的学生,实现社会的改革，和这些学生们一起工作,来实践这些理念。

普林斯顿公开课 - 人性课程节选

But if you look at 1860, the bottom map, if you can vaguely see those deep, dark, red areas, you can see where cotton moved, where slavery moved in the domestic slave trade, and then where Southern political power moved.

看看1860年,就在地图的最底部,如果你们能看到这些深红色的区域,你们就能明白棉花种植地的扩大,是如何导致奴隶需求量扩大的,同样变化的还有南方政权力量

耶鲁公开课 - 美国内战与重建课程节选

What they want to do is expand the actions of the Fed, so that they're not--you can describe the Federal Reserve or any central bank, traditionally, as a banker's bank the Bank of England was the first central bank and it made banks keep deposits at the Bank of England.

他们想做的是扩大政府对经济的调控范围，这样政府就能将联邦储蓄,或者其他中央银行变成银行的银行,英国银行是第一个中央银行,他使其他银行将钱存放在它这里。

耶鲁公开课 - 金融市场课程节选