Josh had an accident and spilled water all over his work.
喬希不小心把作業上灑得都是水。
She was injured in a car/road accident (= when one car hit another).
她在一宗車禍/交通意外中受傷了。
I deleted the file by accident.
我不小心刪掉了那個檔案。
I found her letter by accident as I was looking through my files.
我在查看我的文件時,意外地發現了她的信。