煤和石油内部的能量来源于太阳，这些煤和石油在数百万年前由植物堆积而成。
The energy in coal and oil came from the sun, stored there by the plants of millions of years ago.
如何为您的手表上弦？上弦表冠产生的能量被传至送发条弹簧，在发条盒内堆积。
And how was your watch winders? The crown generated energy is sent to the spring, spring accumulation in the box.
身体储存的能量就会堆积成脂肪。
Your body stores kilojoules that you don't need for energy as fat.
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