这位歌手在歌曲高潮部分巧妙地用颤音唱出了高音。

The singer skillfully ___trilled through the high notes in the climax of the song.

老师教我们如何正确地用舌头振动发西班牙语中的r音。

The teacher showed us how to properly ___trill the Spanish 'r' sound.