面对气候变化，当树木生长的超出它们理想栖息地时，这些飞行的生态系统工程师对于重新植树能有巨大的帮助。
As trees outgrow their ideal habitats in the face of climate change, these flying ecosystem engineers could be a big help in replanting trees.
湖泊是一个复杂的动态的生态系统，其恢复与管理是一个十分复杂的系统工程。
Lake is a complicated, dynamic ecological system, the resumption and management of which is a complex systematic project.
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