A leaf falls much more slowly than a stone.
树叶楼下来的速度比石头慢得多。
Autumn, is a leaf falls down season, is also a season, because of deep love love is light.
秋天，是一个叶落纷飞的季节，也是一个邂逅相遇的季节，缘深缘浅，皆因爱深爱浅。
When light falls on to a leaf, the energy is absorbed and used to carry out specific chemical reactions, helped along by enzymes.
当阳光照射在一片叶子上的时候，能量被吸收，然后在酶的催化作用下，利用吸收的能量进行一些特殊的化学反应。
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