There are special reasons for this unusual phenomenon.
这种奇事的发生，有其独特的原因。
In fact, a little observation, engineer wrote also become inured to the unusual phenomenon.
其实稍微观察下，工程师写的现象也见怪不怪。
Some research suggests the phenomenon may not be so unusual after all.
一些研究显示这种现象可能并没有那么简单。
Some research suggests the phenomenon may not be so unusual after all.
一些研究显示这种现象可能并没有那么简单。
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