screw-worm fly 螺旋蝇
screw worm fly 旋丽蝇
screw-worm 螺旋虫
american screw worm 美洲锥蝇
Screw-worm infection 螺旋锥蝇为害
screw worm infection 螺旋虫感染
the screw-worm fly 螺旋锥蝇
adjusting worm screw 卷轮调节蜗杆
geared worm screw 传动蜗杆螺旋
N the larva of a dipterous fly, Callitroga macellaria, that develops beneath the skin of living mammals often causing illness or death 螺旋蛆
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