Studying for exams can certainly burn up energy.

复习考试肯定消耗能量。

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Creatures that burn up energy more quickly tend to have shorter lives than animals that convert food into energy slowly.

燃烧能量快的的动物比那些把食物缓慢转换成能量的动物生存的时间更短。

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What they don't tell you: If you burn the wood in an open fire, the majority of the energy in the wood will be lost up the chimney.

他们没告诉你的第7件事：如你在炉中烧木材，大部分能量将通过烟囱跑掉。

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And unless we can come up with some energy alternatives that allow us to franchise that technology so that they are equipped to burn that coal cleanly, we're going to have problems no matter what we do in this country when it comes to the environment.

WHITEHOUSE: President Obama Holds a Town Hall in New Hampshire