广播电视英语短句 第 348 课：土壤污染-6

Adding organic material such as compost to soil can also make lead less available to plants. 施堆肥等有机肥也能使植物吸收铅量减少。

Some people attempt a process called phytoremediation. 有人试过植物修复的方法（除铅）。

They try to remove lead from soil by growing certain plants that collect it. 他们试图种植特定的、可以聚集铅的植物来移出土壤中的铅。

But Professor Rosen says the process is complex and may not work. 不过罗森教授指出，这个方法很复杂还不一定有效。