This scenario begins with the planting of hyperaccumulating species in the target area, such as an abandoned mine or an irrigation pond contaminated by runoff.
The first step in phytoremediation is the planting of hyperaccumulating plants in the area to be cleaned up.
请问这个改写是如何对应的呢，我觉得那个to be cleaned up, 一看到就很想排除这个选项。。。。
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发表于 2009-10-25 18:06:00
