Unions regard the government's intention to ban overtime as the thin end of the wedge.
工会认为政府禁止加班的用意是老鼠拉木 ，大头在後边。
A wedge or key that fits into a groove to make a joint.
加强肋作为连接物填入槽内的楔形物或舌状物
I was so tightly wedged between two fat women that it was difficult for me to get up and leave the bus.
我被两个肥胖的女人紧紧地挤在中间，以致于要站起来下公共汽车都很难。
