But why it happens, nobody can say.

但为什么那会发生，没人可以说清楚。

youdao

You can show that if you put a detector on either slit the wave probability function changes but that not explaining why it happens, its just saying this is the way it does happen.

可以向别人展示，如果在任何一条缝旁边放一个检测器，波概率函数会发生变化，但是那并不能解释为什么会发生，它只告诉人们变化就是这样产生的。

youdao

"We've observed the results — clumping under conditions of low relative humidity — but we really don't know why it happens," she noted.

“我们在低湿度条件下倾倒饮料观察到结果，但我们不清楚它是如何发生的。”她指出。

youdao

But the view from a parade float makes it clear why it all happens.

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"We really don't see why an Arab country would be attacked but if this happens it would lead to a very serious situation across the Middle East and would harm the idea of international co-operation or alliance, " he said.

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Why some infections rage out of control and shut down vital organs is a mystery, but experts say it rarely happens in young, healthy people, like da Costa.

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