1鸣啭, 啁啾
(of a bird) to produce a melodious, trilling, or warbling song with a series of varying notes and pitches 2啭鸣, 颤声歌唱
sing or play with trills, alternating with the half note above or below 3啭鸣, 用约德尔唱法唱歌
sing by changing register; sing by yodeling