n.外大气层，外逸层...

Last is the exosphere, which is outermost layer of the atmosphere.最后是散逸层, 这是大气的最外层.This region is called exosphere.这层大气称为外逸层.Above the troposphere is the stratosphere, followed by the ionosphere and capped by the exosphe...

exosphere的音标：exosphere的英式发音音标为：['eksəʊsfɪə(r)]exosphere的美式发音音标为：['eksoʊsfɪr]...