laissez vibrer
/ˌleseˈviːbreɪ, 〈法〉lɛse vibʀe/imperative verb
- a musical instruction used to indicate that a note made by striking or plucking should be allowed to fade away without damping（乐谱上的演奏说明）任其振动（不抑制击打音或拨弄音, 任其自行消失）。
词源
French， literally 'allow to vibrate'.