I forgot my briefcase, you know, by accident.

我忘了拿公事包，不小心的。

Like, he keeps erasing the messages on my machine, supposedly by accident.

比如它不断清除我答录机上的留言，就当是不小心的吧。

Most people stumble into chronic loneliness by accident.

大部分的人渐渐地产生了慢性的孤独感。

Not all such mishaps happened by accident.

并非所有这些事故都是意外发生的。

Model organisms tend to happen by accident.

模型生物往往是偶然产生的。

And it was discovered totally by accident.

而它的发现则完全是个意外。

I got into Hacker almost by accident.

我几乎是偶然间进入骇客公司的。

" I heard of it quite by accident."

“我完全是在意外情况下得知这件事的。”

He came to the topic by accident.

他是在偶然的情况下发现这个话题的。

Yeah, it was kind of by accident.

是啊，有点意外。