After missing the client deadline, Mark walked into the meeting with a hangdog expression.

錯過客戶的截止期限後，馬克一臉內疚地走進會議室。

The courier gave us a hangdog look when he admitted the shipment was lost.

快遞員承認貨件遺失時，露出一副羞愧的神情。

With a hangdog face, the new hire apologized for sending the email to the wrong client.

新進員工一臉愧疚地為把電子郵件寄錯客戶道歉。