Metronome

['metrənəʊm] or ['mɛtrənom]

解释:

(noun.) clicking pendulum indicates the exact tempo of a piece of music.

整理:威尔伯--From WordNet

解释:

(n.) An instrument consisting of a short pendulum with a sliding weight. It is set in motion by clockwork, and serves to measure time in music.

埃利奥特录入