by accident

基本解释

We met together by accident.
我们偶然相会。
By accident he touched the hot metal, and yanked his hand away with a cry of pain.
他偶然摸着了烫金属，疼的大叫一声抽回了手。
I fell into this by accident, but have loved every minute of it because the work is so versatile. I never get bored writing for all my various clients.
我是偶然的机会接触到这一行的，但打那起就爱上了这份工作，因为它涉及领域及广，为形形色色的客户写文章从未让我感到厌烦。

Still,many people argue that his talent should be recognized because ten national coaching victories do not happen by accident.
In fact, you'll find the probability of this happening 3% is only about 3 percent, of it happening just by accident.
实际上你会发现,出现这种情况的概率是，所以说他们的实验结果完全是偶然的。
麻省理工公开课 - 计算机科学及编程导论课程节选
And in the process of tidying it up and making it prettier, I'll often by accident find the bug.
让我的程序更漂亮些,在这个清理美化代码的过程中，我常常无意中发现我的错误。
麻省理工公开课 - 计算机科学及编程导论课程节选

No, no, that man who has stopped near the Coliseum is there purely by accident.
NEWYORKER: So It Is in Life