One day, he finds some large footprints in the sand.

有一天，他在沙滩上发现了一些大脚印。

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In some large American city schools, as many as 20-40% of the students are absent each day.

在美国城市一些规模大的学校中，每天有多达20-40%的学生缺课。

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Astronomers have long speculated that the missing baryonic mass might eventually be discovered in intergalactic space or as some large population of galaxies that are difficult to detect.

天文学家长期以来都在推测，最终可能会在星际空间或者是在难以探测的大量星系中发现丢失的重子质量。

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Still, he points to some hopeful signs -- including a large reduction in the child death rate in Malawi.

VOA: special.2010.04.26

If I were starting a new company, I would look for some large, fast-growing industry that was inefficient, and was not keeping pace with the changes that are possible.

要是开一家新公司的话，我会找一些大的，发展迅速但是效率较低的，没有跟上,变化的行业。

斯坦福公开课 - 戴尔CEO-Michael.Dell谈创业和发展课程节选

There are some large companies like from where I'm from that hire mechanical engineers.

有许多像我家乡的几家大型公司，都招聘机械工程师。

就业很难 - SpeakingMax英语口语达人

At the other end of the spectrum, some large hedge fund managers have also cut fees.

FORBES: Price Wars Heat Up Investment World

Some large companies are also creating their own applications and hosted services, says Slattery.

FORBES: Cisco Says IPad Not Blunting Demand For Cius Tablet

And the overall figures conceal some large differences among specific groups of workers and would-be workers.

ECONOMIST: The widening gap