Our trainers remind call center staff that a friendly intonation helps calm upset customers.

我們的培訓人員提醒客服中心員工，友善的語調有助於安撫不滿的顧客。

During the rehearsal, Ms. Chen practiced her intonation so the sales pitch sounded confident.

彩排時，陳小姐練習了她的語調，讓銷售簡報聽起來更有自信。

The interviewer noticed the candidate's flat intonation and wondered whether he was truly interested.

面試官注意到應徵者語調平淡，懷疑他是否真的有興趣。