Comets formed in circular orbits but were gravitationally flung into their present-day elliptical orbits when they ventured too close to planets.

彗星在圆形轨道上形成，但当它们冒险太接近行星时，就会被引力抛入现在的椭圆轨道。

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This way, we can use a background image instead, but still present the text heading when no style is applied.

这样就可以使用背景图像，而在不应用样式时仍然显示文本标题。

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But when none of these conditions is present, there is a way to establish rapport "by design" -and that's what this book is about.

但是，当以上这些条件都不满足时，还有一种办法可以帮助你去建立和谐融洽的人际关系，这也是本书所讨论的内容，那就是主动出击。

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But I am not content with the present C not when there are workers who are still out of jobs, families who still cannot pay their bills."

VOA: special.2009.05.02

But when we present them with the sort of visual journalism we are developing, we get responses like "Wow - I didn't think the BBC did things like that" and "That's really innovative".

BBC: What is visual journalism?

The One Minute Surveys are anonymous as well, but when I positively present their suggestions in class, students are pleased to make additional suggestions for me to improve.

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This is probably because the gene helps when only one copy is present, but hinders when there are two, one from each parent.

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