How I was able to ace exams without studying? 不复习,考试怎么还是全得A?

ace做名词时,指"擅长...的人","精于...的人".

an ace pilot/marksman 王牌飞行员;神枪手

做形容词时,意思是"第一流的,极好的". (very good)

We had an ace time. 我们过得真痛快.

在上面的句子里,Ace是做动词用的,意思是"(考试)得A".

She aced the exam.