Acid rain has lowered the pH of high-elevation streams, pushing trout out of their habitat.
Acid rain has lowered the pH of high-elevation streams, pushing trout out of their habitat.
酸雨把高海拔溪流的酸硷值降低了，鳟鱼被迫远离家园。
Acid rain has lowered the pH of high-elevation streams, pushing trout out of their habitat.
酸雨把高海拔溪流的酸硷值降低了，鳟鱼被迫远离家园。