为什么大连上海等地的海水没有电影上那样清澈可人呢。

Why are seas around us not as clean as the one in the film, for example seas around Dalian, Shanghai etc.

youdao

为什么大连上海等地的海水没有电影上那样清澈可人呢。

Why are seas around us not as clean as the one in the film, for example seas around Dalian, Shanghai etc.

youdao