水是滋养地球上所有生命最重要的元素，可是水资源却受到污染、过度捕捞、和浪费的严重威胁。

Water is the most important element in the world for the nourishment and life of all living things, yet in reality, it is threatened by the effects of pollution, overfishing and waste.

youdao

水是滋养地球上所有生命最重要的元素，可是水资源却受到污染、过度捕捞、和浪费的严重威胁。

Water is the most important element in the world for the nourishment and life of all living things, yet in reality, it is threatened by the effects of pollution, overfishing and waste.

youdao