He pressed down the accelerator pedal of his car.

他踩下汽车的加速器。

Some guitar players tend to overuse the wah-wah pedal.

一些吉他手往往会滥用“哇哇”。

She was working the treadle of her sewing-machine.

她正用脚踩动缝纫机的。

Chopin gave no indications of pedalling in his manuscript.

在他的手稿中，肖邦没有注明要用。

Type I depressor septi muscles(62%) are visible and identifiable, and can be traced to full interdigitation with the orbicularis oris from their origin at the medial crural footplate.

降鼻中隔肌（62％），解剖中可见，可被识别，并发现在其起始部位内侧脚处和同起于此的口轮匝肌完全交错。