Sending the confidential salary file to the entire staff was a costly blunder.

把機密薪資檔案寄給全體員工，是代價慘重的大錯。

The airline apologized for the booking blunder that left twenty passengers without seats.

航空公司為了讓二十名乘客沒有座位的訂位疏失致歉。

Calling the client by the wrong name during the meeting was an embarrassing blunder.

在會議中叫錯客戶的名字，真是令人尷尬的糗事。