The big B-52 carried the small X-15 under its wing.

VOA: special.2010.07.07

f=0 I would write f of x is in big Oh of n squared.

我写下了。

麻省理工公开课 - 计算机科学及编程导论课程节选

So I simply print, highlight, and give a big "X" and a zero.

我会简单地打印一下，标记出来，然后打一大把叉，给个零分。

对于抄袭的想法 - SpeakingMax英语口语达人