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	tachometer tacit tacitly tacitness taciturn taciturnity taciturnly tack tackily tackiness tackle tacky taco tact tactful tactfully tactic tactical tactically tactician tactile tactless tactlessly tactlessness tad

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