In 1854, cholera and eruptive, John snow collected data, using the map in the address shown on the map, through on-the-spot investigation, found the cause.
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I have found the cause of the problem. he said.
我找到了问题的原因所在，他说。
W: It's rather an unusual case. Have you found the cause of leaking?
W：通常不会发生这种情况的，你发现泄漏的原因了么？
It's rather an unusual case. Have you found the cause of leaking?
通常不会发生这种情况的，你发现泄漏的原因了么？
Officials later found the cause of the accident.
VOA: special.2011.06.12
They found the highest levels of solar activity cause small, but far-reaching effects on weather systems around the world.
VOA: special.2009.09.29
The study found that hopeful individuals were fourteen percent less likely than other women to have died from any cause.
VOA: special.2009.04.15
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