intonation

他的语调表明他对这个提议不太感兴趣。

His ___intonation suggested he wasn't very interested in the proposal.

法语中的升降调与英语有很大不同。

The rising and falling ___intonation in French is quite different from English.

歌手需要练习音准才能唱出完美的旋律。

Singers need to practice their ___intonation to hit the right notes.