EPISODE · Oct 2, 2017 · 4 MIN
多伦多地区的水处理系统是如何运作的？（下）
from 英语小小孩 · host 英语小小孩
大多伦多地区的饮用水来自安大略湖，经过层层处理后送入千家万户。而用过的脏水经过各种过滤及消毒处理后，又会被排放回安大略湖。天呢！难道我今天喝的水来自昨天我制造出的脏水？
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多伦多地区的水处理系统是如何运作的？（下）
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