by accident

基本解释

We met together by accident.
我們偶然相會。
By accident he touched the hot metal, and yanked his hand away with a cry of pain.
他偶然摸著了燙金屬，疼的大叫一聲抽廻了手。
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.
我是偶然的機會接觸到這一行的，但打那起就愛上了這份工作，因爲它涉及領域及廣，爲形形色色的客戶寫文章從未讓我感到厭煩。

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.
實際上你會發現,出現這種情況的概率是，所以說他們的實騐結果完全是偶然的。
麻省理工公開課 - 計算機科學及編程導論課程節選
And in the process of tidying it up and making it prettier, I'll often by accident find the bug.
讓我的程序更漂亮些,在這個清理美化代碼的過程中，我常常無意中發現我的錯誤。
麻省理工公開課 - 計算機科學及編程導論課程節選

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