Once fusion is better understood, and is being harnessed routinely, it's a small leap to apply that technology for propulsion purposes.

一旦核聚变被更好的理解，它将被常规性利用，这个技术应用在推进目的上是一个小的飞跃。

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Neil Armstrong said that one small step for a man, one giant leap for mankind.

尼尔·阿姆斯特朗说，一个人的一小步，就是人类的一大步。

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A child may start with very small steps but as confidence and ability grow, the child will leap ahead, faster and further each day.

一个孩子在开始学习时可能步子很小，但随着信心与能力的增长，他就能跳跃了，每天都会跳得更快，更远。

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Analysts also predict the standard array of upgrades - faster processor, better camera - and Ms Cozza predicts we will see something of a small leap in a major area of Samsung's expertise.

BBC: Samsung set for crucial Galaxy S4 smartphone launch

So even a small loss of output can lead to a big leap in the price.

ECONOMIST: Oil prices

Phone cameras with up to five megapixels are becoming available, but InVisage, a small firm based in Menlo Park, California, hopes to leap from that to a photographically respectable 12 megapixels, without an increase in size or cost, by adding tiny crystals called quantum dots to the process.

ECONOMIST: Camera-phones