擊鼓聲（咚噠咚咚）一種有四個(gè)基本鼓點(diǎn)且第二個(gè)鼓點(diǎn)從左手換到右手的鼓擊形式
A pattern of drumbeats characterized by four basic beats and alternating left-handed and right-handed strokes on the successive primary beats.
演出快進(jìn)行到最驚險的部分時(shí)響起了咚咚的鼓聲。
A drum roll preceded the most dangerous part of the performance.
鼓聲平穩而緩慢。
The beats of the drum were steady and slow.
