| 单词 | wing screw |
| 释义 | wing screw (extremely rare) n WORD FAMILY wing screw n a threaded nut with winglike projections for thumb and forefinger leverage in turning Syn|Hyper butterfly nut, thumbnut, wing nut, wing-nut nut a small (usually square or hexagonal) metal block with internal screw thread to be fitted onto a bolt |
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