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在科学中，理论是对所观察到的相关事件的合理解释。
In science, a theory is a reasonable explanation of observed events that are related.
youdao
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是观察某个事件或者观察实际上正在发生的事情。
Which is to observe an event or actually what is going on.
youdao
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是观察某个事件或者观察实际上正在发生的事情。
Which is to observe an event or actually what is going on.
youdao