How we can maintain the ecological balance has been widely discussed in our university.
如何保护生态平衡在我们大学被广泛讨论。
How we can maintain the ecological balance has been widely discussed in our university.
如何保护生态平衡在我们学校被广泛讨论。
The protection of wild animals for the Protection of Birds to maintain the ecological balance.
保护鸟类保护野生动物维护生态平衡。
The protection of wild animals for the Protection of Birds to maintain the ecological balance.
保护鸟类保护野生动物维护生态平衡。
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