大多数古老的生物几乎都灭绝了，但也有一些生命力顽强的物种存活了下来。
Most of the older organisms were nearly wiped out, although a few hardy species survived.
选一个生命力顽强的植物。
但人们却感觉它是一个总在进行创造、生命力顽强而又充沛的世界。
Yet it is a world that keeps alive the sense of continuing creation and of the relentless drive of life.
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