他们过分地酷使了那些马。

They worked the horses too hard.

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这样一颗太阳能气球，就像传统的太阳能反射镜板一样，必须随太阳横越天空时移转面向，所以酷地球公司正在进行各种使气球转向的实验。

Like a conventional mirror, a solar balloon of this sort must be turned to face the sun as it moves through the sky, and Cool Earth is testing various ways of doing this.

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这个社交网络具有一些炫酷、出色的特性使之不同于Facebook, Twitter, Orkut等其他社交媒体网站。

This social networking service has some cool and superb features that make it different to other social media sites like Facebook, Twitter, Orkut etc.

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