The client sounded sour on the phone after his shipment arrived two weeks late.

客戶的貨晚了兩週才到，他在電話裡聽起來很不高興。

Mark has been sour all week since his budget proposal was rejected at the meeting.

Mark 的預算提案在會議上被否決後，他整個星期都悶悶不樂。

The passengers grew sour after the airline announced another three-hour delay at the gate.

航空公司宣布在登機門再延誤三小時後，乘客們的臉色越來越難看。