He's a man up in the air you know he's so detached he doesn't have his feet on the ground.

他是个生活在空中的人,十足超然,从不脚踏实地。

耶鲁公开课 - 政治哲学导论课程节选

That means, if you are going in a plane and you throw something up in the air, it seems to be going up and down to you.

也就是说,如果你在飞机中,你向空中扔出一物体,它也许会相对于你上下运动

耶鲁公开课 - 基础物理课程节选

Things are not "made up" in Frost, "not made up" in the sense of imagined, called up out of thin air, like fairies and elves.

弗罗斯特的诗歌里没有编造，没有想象，像仙女和精灵那样的凭空想象。

耶鲁公开课 - 现代诗歌课程节选

Keep them up. Wave them in the air with a bit of motion.

先别放下手,再举一小会

耶鲁公开课 - 博弈论课程节选

It goes up, stays in the air for a very long time, but it falls on your head.

它先上升 在空中停留很长时间,但是它会直接落在头上

耶鲁公开课 - 基础物理课程节选