You can actually say big O of 1, big O of 1 being constant time, the same number of steps.

其复杂度为O，表示时间是一个常量，所用的步数是相同的。

哈佛公开课 - 计算机科学课程节选

N --O So we introduced this notation big O which generally refers to worst case.

的平方。，So，，N，squared。,这里我们介绍一个符号,它泛指最坏的情况。

哈佛公开课 - 计算机科学课程节选

I run out of the house and then usually around 3 o'clock somebody points out, in one case a homeless man, that I have a big glob of shaving cream in my ear or-- because I neglected to actually look in the mirror while I shaved.

然后冲出家门,大概到了下午三点时，会有人跟我说，有一次是一个流浪汉，告诉我，我耳朵上有一团剃须膏-,因为我剃须时忘了,照镜子。

耶鲁公开课 - 心理学导论课程节选