THE Central American isthmus is smaller than Texas.

中美洲地峡的面积比美国德州还小。

In which part of the world is the Isthmus located?

苏伊士地峡位于世界的哪一部分？

Environment and health in the central american isthmus;

中美洲地峡环境与卫生；

The isthmus that connects Central America and South America.

连接中美洲和南美洲的一个地峡。

"The Sugar Barons" explains why they migrated to the isthmus.

《糖料巨亨》这本书解释了为什么他们会迁移到地峡。