Sharp words from a teacher,for example, can usually get a daydreaming student to put both feet on the ground.
VOA: special.2009.03.08
It's dangerous to want to get away from earth awhile, to get your feet entirely off the ground.
想要逃离地面一会,让自己的双脚同时离开地面很危险。
But that was something I think they were just assuming in the study to get it off the ground.
但我想这只是他们为了顺利展开研究,而铺垫的假设而已
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