比方说，当你想要重新拾起荒废已久的钢琴时，不要多想，去在48小时内找一架来弹吧，看看到底感觉怎么样。

If you think you might want to take up piano again, instead of "thinking about it," just go play one within 48 hours, and see how it feels.

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现在的研究表明，在最后一次冰河时期的尾声阶段，阿拉斯加东南部沿岸的内大陆架的相当大的区域并未被冰覆盖。

Research now indicates that sizable areas of southeastern Alaska along the inner continental shelf were not covered by ice toward the end of the last Ice Age.

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2002年通用被中方选为该型飞机的发动机供应商时，双方估计，20年内将可卖出约500架ARJ21，对通用的潜在价值为30亿美元。

When GE was selected by the Chinese as the engine provider for the aircraft in 2002, the companies estimated that about 500 ARJ21s would be sold over 20 years, with a potential value of $3bn to GE.

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