问题描述：
（我只要原因） Every means ▁▁▁▁▁▁ prevent the land from ……
Every means ▁▁▁▁▁▁ prevent the land from being polluted.
Every means ▁▁▁▁▁▁ prevent the land from being polluted.
问题解答：
我来补答展开全文阅读