With your own aeroplane, you fly where and when you want to, often to and from airfields that are not served by airlines.

用自己的飞机，你可以随时去你想去的地方，起降的机场通常也不对航空公司开放。

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From the moment life began on the planet, the climate has swung drastically and often abruptly from one state to another.

自从地球上出现生命的那一刻起，气候就剧烈地变化着，常常是突然地从一个状态转向另一个状态。

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Social scientists work with statistics derived from data, and the best way to present these statistics is often in graphic form.

社会科学家研究从数据中得出的统计信息，而呈现这些统计数据的最佳方式通常是图表形式。

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Farmers often hired immigrant workers from Asia and Mexico to plant, harvest and pack these foods.

VOA: special.2010.01.11

Just go back as often as possible to this formula and work your way from there.

尽量多地复习这个公式,自己多推导几遍

耶鲁公开课 - 基础物理课程节选

And Meltzoff finds that babies more often than not stick their tongues out back, suggesting some sort of social connection from one person to another, and then later on babies are mimics.

迈尔左夫发现,婴儿往往会把舌头伸出来再缩回去,表明了人与人之间的某种社会联系,也说明了婴儿是模仿者

耶鲁公开课 - 心理学导论课程节选

In a postseason that has seen the quality of the Rangers' play fluctuate from game to game and often from period to period Lundqvist had been a source of reliable excellence, just as he had through the regular season.

WSJ: For Lundqvist and Rangers, a Bad Time to Look Vulnerable

People in many U.S. communities cannot walk even if they wanted to because workplaces are too far apart to permit walking, and too spread out to make public transportation--which often requires walking at least to and from bus or train stops--practical.

FORBES: Sprawling Cities, Higher Scales

We cover original legal stories and also often link to and repackage content from the mainstream media.

FORBES: The Evolution of Journalism (Or: How The New York Times Stole My Blog Story)