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....
他和他的舞伴领头跳一种快步舞.He led off with his companion in a sort of quick - step.老女巫也只好跳起快步舞来.So the old witch was forced to dance a jigs.他们看着电视里的快步舞并且试图模仿.They watched jig on TV and tried to imitate....