foot pedal

• 用脚操作的踏板或杠杆，用于控制机械装置，如车辆中的加速、制动、离合等，或乐器中的踏板（如钢琴、管风琴）。

A foot-operated lever or pedal used to control a mechanism, such as in a vehicle (accelerator, brake, clutch) or a musical instrument (piano, organ).

1. Control device for machinesB1formal

   A lever or switch operated by the foot to control a machine, vehicle, or musical instrument.

   脚踏板

   • The driver pressed the foot pedal to accelerate the car.
   • She used the foot pedal to control the sewing machine speed.
   • The musician's foot pedal changed the sound of the guitar.

2. Musical instrument accessoryB1formal

   A pedal on a piano, organ, or other instrument that modifies the sound or sustain.

   脚踏板

   • The pianist pressed the sustain foot pedal to hold the chord.
   • He learned to use the foot pedal for the bass drum in the drum set.
   • The organist's foot pedals produced deep bass notes.