The hotel pianist played a few off-key notes, but guests at the reception barely noticed.

飯店的鋼琴師彈錯了幾個走音的音符，但招待會上的賓客幾乎沒察覺。

During the company party, our manager sang an off-key version of the anniversary song.

公司派對上，我們經理唱了一段走音的週年紀念歌。

A customer emailed to complain that the hold music on our support line sounds off-key.

一位顧客寄電子郵件抱怨，我們客服專線的等候音樂聽起來音不準。