单词	helicopter
释义	helicopterhelicopter /ˈhɛlɪˌkɑptɚ/ ●●● S3 noun [countable] Etymology ETYMOLOGYhelicopter Origin: 1800-1900 French hélicoptère, from Greek heliko- + pteron wing a type of aircraft with large metal blades on top that spin very fast to make it fly [Origin: 1800–1900 French hélicoptère, from Greek heliko- + pteron wing]—helicopter verb [intransitive, transitive]
随便看	budget budgetary budget deficit budget surplus Buenos Aires buff Buffalo buffalo Buffalo Bill buffalo wing buffer buffet buffeting buffoon buffoonery bug bugaboo bugbear bugeyed bugger buggy bugle bugler build builder

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