clamp
noun [ C ] uk/klæmp/ us/klæmp/
夹具;夹钳;夹子
a device made of wood or metal that is used to hold two things together tightly
Carefully tighten the clamp until it firmly supports the pipette in a vertical position. 小心翼翼地把夹子夹紧，直到能把吸液管牢牢地垂直固定住为止。
clamp
verb uk/klæmp/ us/klæmp/
(FASTEN)
[ T usually + adv/prep ]（用夹具）夹紧，夹住
to fasten two things together, using a clamp
Clamp the two pieces of wood (together) for 15 minutes. 把两块木片紧紧夹在一起，夹15分钟。
[ T ] mainly UK (US boot)用夹锁锁住（违章停放车辆的车轮）
If the police or another person in authority clamps a vehicle, they fix a metal device to one of its wheels, usually because it is parked illegally. The device is usually only removed when the owner pays an amount of money.
When I finally got back, I found my car had been clamped. 等我终于赶回来时，发现我的车已被车轮夹锁给锁住了。
See also: wheel clamp
(HOLD TIGHTLY)
[ T + adv/prep ]紧紧抓住；牢牢固定住
If you clamp something in a particular place, you hold it there tightly.
He clamped his hand over her mouth. 他用手死死地捂住她的嘴巴。
A heavy iron chain was clamped around his wrists. 沉重的铁铐紧紧地锁住了他的手腕。
Phrasal verb
clamp down on something 取缔；严禁；强行限制；压制
to take strong action to stop or limit a harmful or unwanted activity
The government is clamping down on teenage drinking. 政府严禁青少年饮酒。