vt. snap
他一边跳博普舞，一边打着响指。
He was bopping around, snapping his fingers.
《柯林斯英汉双解大词典》
数百万的听众和着她的首张单曲打响指。
She had millions of listeners snapping their fingers to her first single.
他打了一个响指，威尔逊便拿出一张纸来。
He snapped his fingers, and Wilson produced a sheet of paper.
响指原理是中指击打大拇指根部肌肉后，产生震动，发出声音，声波在手指合拢的喇叭状里经过干涉会使声音变。发声的重点是让手指形成喇叭的形状。响指的原理在声学上叫做空腔谐振原理。响指可用于灵感突现、灵机一动、猛然醒悟、耍帅或吸引他人注意等情景。
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