clamp
音标：
美音：/klæmp/，英音：/klæmp/
听听基本释意：
外刊例句：
Lawmakers on a House Judiciary subcommittee Thursday pressed government watchdogs on how to clamp down on the FBI’s use of warrantless surveillance of American citizens through its spying on foreign nationals.
众议院司法小组委员会的议员周四向政府监管机构施压，要求他们如何制止联邦调查局通过监视外国人来对美国公民进行无证监视。
—Washington Times
However, she said Labour was not committing to “wholesale repeal” of the new law introduced by the Conservatives last week, which has been criticised for clamping down on the rights of peaceful protesters.
不过，她表示，工党并不承诺“全面废除”保守党上周提出的新法律，该法律因压制和平抗议者的权利而受到批评。
—BBC
Government ministers, who are currently passing legislation to clamp down on online abuse, should be particularly careful in their use of language, or risk becoming a target themselves.
目前正在通过立法打击网络滥用行为的政府部长在使用语言时应特别小心，否则自己就有成为攻击目标的风险。
—BBC
基本释意：
noun
a device (generally used by carpenters) that holds things firmly together
v. （用夹具）夹紧，夹住；紧紧抓住，牢牢固定住；<英>给（车辆）上夹钳；保持（电信号）电压极限在规定水平
同义词：
clinch
短释义：
Carpenters, woodworkers, and plumbers all use clamps when they want to hold things together while they wait for glue to dry or need their hands free. When you use this kind of device, you can also say you clamp something: “Clamp that board down for me before I turn the saw on.” Clamp most likely shares a Germanic root with the word clam — *klam-, “to press together.”
夹子是一种用于将两个物体紧紧固定在一起的工具。修理椅子时，最好使用夹子将胶合部件牢固地固定在一起。
长释义：
Carpenters, woodworkers, and plumbers all use clamps when they want to hold things together while they wait for glue to dry or need their hands free. When you use this kind of device, you can also say you clamp something: “Clamp that board down for me before I turn the saw on.” Clamp most likely shares a Germanic root with the word clam — *klam-, “to press together.”
木匠、木工和水管工在等待胶水干燥或需要腾出双手时，都需要使用夹子将东西固定在一起。当你使用这种设备时，你也可以说你夹住了某物：“在我打开锯子之前，为我夹住那块木板。” Clamp 很可能与 clam 这个词有共同的日耳曼词根 — *klam-，“压在一起”。
文学例句：
I don’t remember screaming, but the next thing I knew, Mr. Gaston had his hand clamped over my mouth.
我不记得我尖叫过，但接下来我知道的是，加斯顿先生用手捂住了我的嘴。
—The Secret Life of Bees by Sue Monk Kidd
I try to answer back and find both of my hands are clamped tightly over my mouth.
我试图回答，但发现我的双手紧紧地捂住了我的嘴。
—Mockingjay by Suzanne Collins
He didn’t have time to scream before another shark clamped its mouth over his head.
他还没来得及尖叫，另一条鲨鱼就用嘴捂住了他的头。
—Adrift by Paul Griffin
词源：
clamp (n.)device for fastening or holding, c. 1300, probably from Middle Dutch clampe (Dutch klamp), from Proto-Germanic *klam-b- “clamp, cleat;” cognate with Middle Low German klampe “clasp, hook,” Old High German klampfer “clip, clamp;” also probably related to Middle Dutch klamme “a clamp, hook, grapple,” Danish klamme “a clamp, cramp,” Old English clamm “a tie, fetter,” perhaps from the same root as Latin glomus “ball-shaped mass” (see glebe).It took the place of earlier clam “clamp, brace,” from Old English clamm “bond, fetter, grip, grasp” (see clam (n.)).Related entries & more
下面是词源的翻译（机器翻译比较难翻，参考着看）
用于紧固或固定的夹具（n.）装置，c． 1300，可能源自中古荷兰语 lampe（荷兰语 klamp），源自原始日耳曼语 *klam-b-“夹子，夹子；”与中古低地德语 klampe“扣子，钩子”同源，古高地德语 klampfer“夹子，夹子；”也可能与中古荷兰语 klamme“夹子、钩子、抓斗”、丹麦语 klamme“夹子、抽筋”、古英语 clamm“领带、脚镣”有关，可能与拉丁语 glomus“球形物质”同根（它取代了早期的蛤“夹子，支撑”，来自古英语蛤“结合，束缚，抓握，抓握”（参见蛤（n.））。相关条目及更多
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