by mistake
US /baɪ mɪˈsteɪk/
UK /baɪ mɪˈsteɪk/

短語
1.
不小心, 錯誤地
unintentionally or accidentally
範例:
•
I took her umbrella by mistake.
我不小心拿了她的傘。
•
He sent the email to the wrong person by mistake.
他不小心把郵件發給了錯誤的人。
在 Lingoland 學習這個單詞

不小心, 錯誤地
unintentionally or accidentally