translation.en: When a tree's done using its leaves -- its solar collectors, these amazing molecular photon capturing devices -- at the end of a season, it doesn't pack them up, take them to the leaf reprocessing center and have them melted down to form new leaves.
translation.zh: 当一个树使用了它的叶子－ 它的太阳能收集器，这些了不起的分子大小的光子捕获设备－ 在季末的时候， 它没有把叶子包装好，送到一个树叶处理中心 溶解它们来制造新的树叶。