Scientists and engineers have long believed in the promise of batteries to change the world.

长期以来，科学家和工程师们都相信电池能够改变世界。

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Love's promise, grow up in the promise of a smile.

爱的承诺，在一起长大的约定中绽放笑脸。

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I believed in the promise of the equity markets but not in the hope of anyone to outsmart them.

我相信证券市场是有前途的，但我不指望任何人会比市场更聪明。

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The promise came Friday on the third and final day of the Group of Eight summit meeting in L'Aquila,Italy.

VOA: special.2009.07.11

There's in those images, I think, a kind of utopian promise that the familiar, ordinary pleasures of rural life can be recaptured in a new society of plenty.

在这些图片中，我认为有一种乌托邦的希望,对乡村生活熟悉而平凡的快乐的希望,能在一个自足的新社会里重新得到快乐的希望。

耶鲁公开课 - 现代诗歌课程节选

What Milton is primarily interested in in his Nativity Ode is the redemption, the promise of what Christ's Nativity will do at some future point for mankind.

弥尔顿在基督诞生颂歌里最感兴趣的是,救赎，基督诞生后在将来,在将来能为人类做些什么。

耶鲁公开课 - 弥尔顿课程节选

Truly, this is a nation that encompasses both a rich history and a belief in the promise of the future.

WHITEHOUSE: President Obama Holds Town Hall with Chinese Youth

His leadership experience has given him a unique capacity to inspire hope in the promise of the American dream of a boundless future.

CNN: Transcript: Al Gore's speech at Invesco Field

And we glory in the promise of redemption in the resurrection.

WHITEHOUSE: White House Easter Prayer Breakfast