Music 【乐】
- (especially as a direction) using the soft pedal on a piano（尤作演奏演唱指示）用弱音踏板（的）。
- a device in a piano that shifts the mechanism slightly to one side when the soft pedal is depressed, so that the hammers do not strike all of the strings when sounding each note and the tone is therefore quieter弱音踏板。
词源
Italian, literally 'one string'.