The residence times for the Great Lakes of North America, namely, Lakes Superior, Michigan, Huron, Erie, and Ontario, are, respectively, 190, 100, 22, 2.5, and 6 years.

北美五大湖，也就是苏必利尔湖、密歇根湖、休伦湖、伊利湖和安大略湖，它们的停留时间分别是190年、100年、22年、2.5年和6年。

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Scientists studied the Great Lakes in America and the Arctic Ocean in northern Canada.

科学家们研究了美国的五大湖和加拿大北部的北冰洋。

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Where are the Great Lakes?

五大湖在哪里？

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The Great Lakes are part of a waterway that extends from the Atlantic Ocean to the center of North America.

VOA: special.2009.11.11

John Glenn, the former astronaut who was then a senator from Ohio, put it this way: "I know the Great Lakes.

VOA: special.2009.01.05

The Griffin was the one of the first sailing vessel on the Great Lakes and also among the first shipwrecks.

VOA: special.2009.11.11

The Great Lakes region has been sharply divided over how to deal with the threat.

NPR: Gov. Quinn Open To Great Lakes-Mississippi Split

This is to prevent arid states from looking at the five Great Lakes as their reservoirs.

FORBES: What Turkey, Football and Beer Have in Common (It's Not Just Thanksgiving)

The other states are pushing for separation of the Mississippi and Great Lakes watersheds at Chicago.

WSJ: Great Lakes governors seek agreement on invasives