音标：[tril]
n. 颤声, 颤音, 啭鸣
vt. 用颤声说, 用颤音唱
vi. 发出颤音
在线英汉词典

trill的短语、例句：

rill n 1 vibrating sound made by the voice or in bird song （人或鸟发出的）颤动声. 2 (music 音) (sound of) two notes a tone or a semitone apart being played or sung several times one after the other （音的）颤动; 颤音. 3 speech sound made by pronouncing `r´ while vibrating the tongue （舌的）颤音, 颤动辅音. trill, v [I, Ip, Tn] 1 sound or sing (a musical note) with a trill 用颤音发声; 用颤音唱（某乐音）
The canary was trilling away in its cage. 那只金丝雀在笼中鸣啭. 2 pronounce (a letter) with a trill 用颤音发（某字母）的音; 发某字母的颤音.