柯林斯词典jamb /dʒæm/ (jambs) 1. N-COUNT A jamb is a post that forms the side or upright part of a door frame or window frame. 門窗側柱[usu n N] 返回 jamb剑桥词典the vertical part of a door or window frame 門（或窗）的垂直邊框 也見doorjamb 返回 jamb