小学五年级城市绿化英语作文

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we should spare no effort to do so. we should plant even more trees and take even better care of them while they are growing. besides，小学五年级城市绿化英语作文， but produce oxygen which is essential to human beings. secondly，我们可以从我们的城市的绿色化，因为我们可以受益于使我们的城市更环保，树木可以改善城

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