随着药物开始起作用，她的疼痛感逐渐减轻。

Her pain started to ___diminish as the medication took effect.

他在会议上不断地贬低同事的贡献，试图抬高自己。

He kept trying to ___diminish his colleague's contributions during the meeting to make himself look better.

在乐曲的这部分，他将大三度音程减小为小三度。

In this section of the piece, he ___diminishes the major third to a minor third.