1.technicalAPM a musical sound made by quickly moving between two notes 〔音乐的〕颤音
2HBBSOUNDa short repeated high sound 短促重复的响声;〔鸟的〕啼啭,唧唧啾啾
the trill of blackbirds
乌鸫的啼啭声
Examples from the Corpus
trill• A trill of song from somewhere outside the trench.• From behind the curtain the tuning-up sounds, trumpet runs, and flutetrills, were becoming more clamorous.• From within, I catch the trill of a Pogues song.
Origintrill2
(1600-1700)Italiantrillo, from trillare“to trill”, probably from Dutchtrillen“to shake very quickly”