Right, 'cause that means either I've been handed zero elements which mean there's really no work to be done or I've been handed one element which is a vacuous truth that it's sorted, right?

因为如果给出0个元素,那意味着不需要做任何事,如果给出1个元素，那显然,它是有序的，对吗？

哈佛公开课 - 计算机科学课程节选

What I mean is when you wish to express that you are sorry if you've done something wrong

在这里我是指，你想要表达的是，如果你确实有过失，你感到很抱歉，

I'm sorry 课堂 - SpeakingMax英语口语达人