Oh, I could cheat and make, OK the upper bound a half, but that wouldn't be very honest.

噢，我可以像作弊一样,把上界扩大两倍，但这看起来没什么用。

麻省理工公开课 - 计算机科学及编程导论课程节选

oh, it's kind of hard to compare case 2 and 3 when we can't see it anymore.

噢，我们不太好比较第二和第三选项3,这里看不清了。

麻省理工公开课 - 化学原理课程节选