To argue for a cause-and-effect relationship, scientists must attempt to explain why and how a connection could occur.

想要证明因果关系，科学家们必须尽量解释这种联系可能出现的原因和方式。

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As yet a challenge to explain the cause-and-effect relationship between sleep and nutrition, there may be a third factor that impacts both of them.

要解释睡眠和营养之间的因果关系，还有一个挑战，那就是可能有第三个因素对它们两者都有影响。

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It's as yet a challenge to explain the cause-and-effect relationship between sleep and nutrition. There may be a third factor that impacts both of them.

迄今为止，解释睡眠和营养间的因果关系仍是一个挑战。可能存在第三个因素影响这两者。

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Can you see how the cause-and-effect relationship of my thoughts just engulfed me in doom and gloom?

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It's difficult to show a perfect cause-and-effect relationship when it comes to migration patterns, as individuals and families move for a wide range of reasons.

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His defense lawyer said authorities set out from the beginning to link texting to the crash, a cause-and-effect relationship that he contends is not valid.

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