Please underscore the delivery deadline in the contract before sending it to the client.

寄給客戶之前，請在合約中的交貨期限下方畫底線。

The manager underscored the key figures in the quarterly budget report with a red pen.

經理用紅筆在季度預算報告的關鍵數字下方畫了底線。

In the job posting draft, I underscored the required qualifications so HR could review them.

在職缺公告草稿中，我把必備資格畫了底線，方便人資部審閱。