Alas, this approach, too, has its limits. In particular, some of the light is reabsorbed as it bounces around, and is lost as heat.

但是这种方式，也有其局限性，因为当一些被重新吸收的光反跳的时候，会像热量一样消失。

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This has its downside, to be sure, but it does mean the for-profits are light on their feet and able to adjust to changing job-market needs.

当然，这有它的弊端，但是这也就意味着营利性大学没有那么多牵绊，可以从容地做出改变去适应劳工市场的需要。

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It has its challenges (one kid is a light sleeper).

这是它们的挑战(其中一个小家伙有点失眠)。

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It has its rough edges and hiccups, but they're easily forgivable in light of its pre-release moniker.

ENGADGET: Steam Big Picture beta hands-on HD

Previous research found that the shark has light-producing cells called photophores in its belly, and it uses this light to camouflage itself.

BBC: Glowing shark scares off predators with 'lightsabers'

It was built a few weeks ago but its purpose has only just come to light.

BBC: The canopy outside the Piazza Cafe