pedalling

n.踏板；乐器的脚踏键

v.用脚踏动；踩踏板

The pedal of a cycle is attached to a crank. 自行车的踏板与曲柄相连。

He pushed hard on the brake pedal to avoid a collision. 他使劲踩下煞车踏板以避免撞车。

He had to pedal hard to get up the hill. 他得用力踩动，以便上山。

I saw him pedal to school every morning. 我看到他每天早晨骑自行车上学。

The pilot has to pedal hard to get it into the air. 驾驶员不得不使劲踩踏板才能使它飞上天。

vi.倒踏脚踏板；(拳击中）后退；食言