n. 空
航行学,空航航学
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anorectum, anorexia, anorexia nervosa, anorexic, anorexigenic, anorgastic, anormal, anorthic, anorthite, anorthite-basalt,
相似单词
aerogun, aerogun-sights, aerohaler, aeroheating, aerohydrodynamics, aerohydronautics, aerohydroplane, aerohydrotherapy, aerohydrous, aerohypsometer,