问题描述:
should the stream recover怎么接前面的句子理解啊?大榭!
The occasional failure of some salmon to return to their natal streams in order to spawn provides a mechanism by which an environmentally degraded stream could be recolonized by new salmon populations should the stream recover.
The occasional failure of some salmon to return to their natal streams in order to spawn provides a mechanism by which an environmentally degraded stream could be recolonized by new salmon populations should the stream recover.
问题解答:
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