Acid rain
01
酸性雨, 酸の雨
rain containing a great deal of acidic chemicals, caused by air pollution, which can harm the environment
例
The once-clear mountain stream turned murky after years of acid rain falling on its watershed.
かつて澄んでいた山の小川は、その流域に何年も酸性雨が降り注いだ後、濁ってしまった。
