vibrato
noun [ C or U ] music specialized uk/vɪˈbrɑː.təʊ/ us/vɪˈbrɑː.t̬oʊ/ vibratos
（演奏或演唱时的）颤音
a repeated slight shaking in a musical note, either when played on an instrument or sung, that gives a fuller sound to the note
He sang the aria with a rich vibrato. 他以饱满的颤音演唱了那支咏叹调。
Compare: tremolo