Well, trees are natural air conditioners. They cool the air and clean it. Three trees can do the job of 15 air conditioners.
嗯，树木是天然的空气净化器。他们空气的温度下降，把它打扫干净。三棵树就能做这项工作15空调。
Well, trees are natural air conditioners. They cool the air and clean it. Three trees can do the job of 15 air conditioners.
嗯，树木是天然的空气净化器。他们空气的温度下降，把它打扫干净。三棵树就能做这项工作15空调。
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