翻译:我们必须采取措施阻止河流受到污染
问题描述：
翻译:我们必须采取措施阻止河流受到污染
答
We must take measures to prevent rivers from been polluted.
答
We must take the measure to prevent the rivers to receive pollute
答
We must take measures to prevent rivers from being polluted.
from是介词,因此动词应该是动名词形式
答
We must take the measure to prevent the rivers to be polluted