| 单词 | screw |
| 释义 | screw n. & v. --n 1. a thin cylinder or cone with a spiral ridge or thread running round the outside (male screw) or the inside (female screw). 2. (in full wood-screw) a metal male screw with a slotted head and a sharp point for fastening things, esp. in carpentry, by being rotated to form a thread in wood etc. 3. (in full screw-bolt) a metal male screw with a blunt end on which a nut is threaded to bolt things together. 4. a wooden or metal straight screw used to exert pressure. 5. (in sing. or pl.) an instrument of torture acting in this way. 6. (in full screw-propeller) a form of propeller with twisted blades acting like a screw on the water or air. 7. one turn of a screw. 8. (foll. by of) Brit. a small twisted-up paper (of tobacco etc.). 9. Brit. (in billiards etc.) an oblique curling motion of the ball. 10. sl. a prison warder. 11. Brit. sl. an amount of salary or wages. 12. coarse sl. a an act of sexual intercourse. b a partner in this. Usage Usually considered a taboo use. 13. sl. a mean or miserly person. 14. sl. a worn-out horse. --v 1. tr. fasten or tighten with a screw or screws. 2. tr. turn (a screw). 3. intr. twist or turn round like a screw. 4. intr. (of a ball etc.) swerve. 5. tr. a put psychological etc. pressure on to achieve an end. b oppress. 6. tr. (foll. by out of) extort (consent, money, etc.) from (a person). 7. tr. (also absol.) coarse sl. have sexual intercourse with. Usage Usually considered a taboo use. 8. intr. (of a rolling ball, or of a person etc.) take a curling course; swerve. 9. intr. (often foll. by up) make tenser or more efficient. Phrases and idioms have one's head screwed on the right way colloq. have common sense. have a screw loose colloq. be slightly crazy. put the screws on colloq. exert pressure, esp. to extort or intimidate. screw cap = screw top. screw-coupling a female screw with threads at both ends for joining lengths of pipes or rods. screw eye a screw with a loop for passing cord etc. through instead of a slotted head. screw gear an endless screw with a cog-wheel or pinion. screw hook a hook to hang things on, with a screw point for fastening it. screw-jack a vehicle jack (see JACK(1)) worked by a screw device. screw pine any plant of the genus Pandanus, with its leaves arranged spirally and resembling those of a pineapple. screw-plate a steel plate with threaded holes for making male screws. screw-tap a tool for making female screws. screw top (also (with hyphen) attrib.) a cap or lid that can be screwed on to a bottle, jar, etc. screw up 1. contract or contort (one's face etc.). 2. contract and crush into a tight mass (a piece of paper etc.). 3. summon up (one's courage etc.). 4. sl. a bungle or mismanage. b spoil or ruin (an event, opportunity, etc.). screw-up n. sl. a bungle, muddle, or mess. screw valve a stopcock opened and shut by a screw. Derivatives screwable adj. screwer n. Etymology: ME f. OF escroue female screw, nut, f. L scrofa sow |
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