trill

US /trɪl/
UK /trɪl/
"trill" picture
1.

颤音, 颤声

a quavering or vibratory sound, especially a rapid alternation between two musical notes a semitone or tone apart

:
The bird's song ended with a beautiful trill.
鸟儿的歌声以一声美妙的颤音结束。
She added a delicate trill to the melody.
她在旋律中加入了一个精致的颤音
1.

颤动, 颤声唱

produce a trill

:
The canary began to trill its morning song.
金丝雀开始颤声唱它的晨歌。
She could trill her 'r's perfectly.
她能完美地颤动她的“r”音。