Above the troposphere is the stratosphere, followed by the ionosphere and capped by the exosphere.

在對(duì)流層上是平流層, 接著是電離層,最上層是外逸層.

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Last is the exosphere, which is outermost layer of the atmosphere.

最后是散逸層, 這是大氣的最外層.

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This region is called exosphere.

這層大氣稱為外逸層.

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