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Once the balance of nature is disturbed,it is.
这里为什么不填非谓语形式disturbrd?
人气:168 ℃ 时间:2020-05-14 11:22:57
解答
可以成为非谓语形式的:
Once disturbed,the balance of nature is likely to take at least 25 years to restore.
--------这里,Once disturbed 就是非谓语形式,代替时间状语从句Once the balance of nature is disturbed.
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