handbrake

1. N-COUNT In a vehicle, the handbrake is a brake which the driver operates with his or her hand, for example, when parking. 手闸[英国英语]

He stopped just as his truck tilted down the steep incline, put on the handbrake, and stepped out. 就在他的卡车沿陡峭的斜坡向下滑的时候，他停了下来，拉住了手闸，然后下了车。