Its use spreads disease and impoverishes the land .

使用了它之后，病害蔓延，土地贫瘠。

The more war destroys , the more it impoverishes , the greater is the postwar need .

战火摧毁的东西越多，它所造成的贫困越严重，战后的需要量就越大。

Continuous farming impoverishes the soil .

连续耕作使土壤变得贫瘠.

By a correspondence between two relations , but to do so most certainly impoverishes the phenomenon under study .

用两个关系之间的对应来解释生成的阻碍未尝不可，但是这样做必然会研究中的现象变成贫瘠。

Clearing forests may enrich those who are doing it , but over the long run it impoverishes the planet as a whole .

砍伐森林或许能够让那些毁林者发家致富，但从长远来看，却会让个地球贫病交加。