clamp

1. N-COUNT A clamp is a device that holds two things firmly together. 夹具

Many openers have a magnet or set of clamps to grip the open lid. 许多开启器是用磁铁或夹具来夹紧要开启的盖子。

2. N-COUNT A clamp is a large metal device which is attached to the wheel of an illegally parked car or other vehicle in order to prevent it from being driven away. The driver has to pay to have the device removed. 丹佛锁扣 (用来钳锁违章停车的汽车轮子)[英国英语]

I watched a couple of cops put a clamp on a green Mercedes. 我看到几个警察给一辆绿色奔驰车加上丹佛锁扣。

3. V-T When you clamp one thing to another, you fasten the two things together with a clamp. 用 (夹具) 夹紧

Somebody forgot to bring along the U-bolts to clamp the microphones to the pole. 有人忘记带来把麦克风夹在支杆上的U型螺栓。

4. V-T To clamp something in a particular place means to put it or hold it there firmly and tightly. 把…夹紧; 固定

Simon finished dialling and clamped the phone to his ear. 西蒙拨完号码，把话筒紧夹在耳朵上。

He clamped his lips together. 他紧闭双唇。

5. V-T To clamp an illegally parked car means to fit a device to one of its wheels so that it cannot be driven away. 锁扣 (违章停放的车辆)[英国英语]

Though the city will no longer clamp cars, illegally parked vehicles will be towed. 尽管该城将不再锁扣车辆，违规停放的车辆将被拖走。