wing nut
英
美
- nut n.坚果;果仁n.螺母;螺帽;难对付的人(事)vi.采坚果
- wing n.翅膀;翼v.飞过;空运;临时发挥
Noun:
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any tree of the genus Pterocarya; fruit is a small winged nutlet; Caucasus to southeastern Asia
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a threaded nut with winglike projections for thumb and forefinger leverage in turning