这层大气称为外逸层.This region is called exosphere.在对流层上是平流层, 接着是电离层,最上层是外逸层.Above the troposphere is the stratosphere, followed by the ionosphere and capped by the exosphere....
The root of Dr Kirby's dark mood, however, was the war.不过柯比博士心事重重的根源却是战争.Over a bottle of Moselle, Kirby warmed up and started to about himself and his work.几杯摩泽尔葡萄酒下肚, 柯比兴奋起来,开始讲起他自己和他的工作." Perhaps I can introduce ...