中美洲地峡的面积比美国德州还小。

THE Central American isthmus is smaller than Texas.

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连接中美洲和南美洲的一个地峡。

The isthmus that connects Central America and South America.

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中美洲地峡环境与卫生；

Environment and health in the central american isthmus;

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中美洲地峡环境与卫生；

Environment and health in the central american isthmus;

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