大卫的所有的同班同学都困惑不解--没有人可以想象得出他怎么突然变成了优等生.

大卫的所有的同班同学都困惑不解--没有人可以想象得出他怎么突然变成了优等生.的英文翻译

基本释义

• All David's classmates were completely stumpped--no one could figure out how he could be a top student overnight.