The customer's tone of voice was a clear cue that she wanted a refund.

那位顧客的語氣明顯透露出她想要退款的線索。

Interviewers often look for nonverbal cues to judge a candidate's confidence.

面試官常會觀察非語言線索來判斷應徵者是否有自信。

The tracking number in the email gave us a useful cue to locate the missing shipment.

電子郵件中的追蹤號碼給了我們尋找遺失貨件的有用線索。