My dear friends, how do you think of this kind of phenomenon?
亲爱的朋友们，你们如何看待这个现象呢？
The appearance of this kind of phenomenon has the certain historical background.
这种现象的出现有一定的历史背景。
He explained from scientific points of view that this kind of phenomenon was not very normal.
他根据科学解释这种现象是不很普遍的。
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