单词	clamp
释义	noun | verb clampclamp1 /klæmp/ noun [countable] a piece of equipment that can fasten or hold things together noun | verb clampclamp2 verb [transitive always + adv./prep.] Etymology ETYMOLOGYclamp2 Origin: 1400-1500 Probably from an unrecorded Middle Dutch klampe Verb Table VERB TABLE clamp Simple Form Present I, you, we, they clamp he, she, it clamps Past I, you, he, she, it, we, they clamped Present perfect I, you, we, they have clamped he, she, it has clamped Past perfect I, you, he, she, it, we, they had clamped Future I, you, he, she, it, we, they will clamp Future perfect I, you, he, she, it, we, they will have clamped Continuous Form Present I am clamping he, she, it is clamping you, we, they are clamping Past I, he, she, it was clamping you, we, they were clamping Present perfect I, you, we, they have been clamping he, she, it has been clamping Past perfect I, you, he, she, it, we, they had been clamping Future I, you, he, she, it, we, they will be clamping Future perfect I, you, he, she, it, we, they will have been clamping 1to fasten or hold two things together using a clamp: clamp something together/onto/across etc. Clamp the boards together until the glue dries.2to put or hold something firmly in a position where it does not move: clamp something over/between/around etc. His cigar was clamped firmly between his teeth.clamp down phrasal verb to take firm action to stop a crime or other illegal activity from happening: clamp down on The police are clamping down on drunk drivers.
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