我们认为，如果珊瑚礁遭到破坏，几年之后，生长最快的珊瑚就会重新在该地区繁衍生息。

We think that when reefs are damaged, after a few years, the fastest-growing corals repopulate the areas.

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但是每个品种略有差异，只有生长最快的那个——管子里颜色变得最绿——会被选择进一步开发。

But each strain is slightly different, and only the fastest growing one - determined by which tube turns the darkest green - will be chosen for further development.

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胡子是生长最快的毛发，如果一个男人从来都不修剪他的胡须，那么他留了一辈子的胡须将有30英尺之长。

Beards are the fastest growing hair. If the average man never trimmed his beard, it could grow to 30 feet over the course of his lifetime.

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