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unassisted takeoff是什么意思，unassisted takeoff的翻译，unassisted takeoff音标、读音、用法和例句_英语字典
英语字典

unassisted takeoff

U 开头单词

基本解释

  • [经济学]无助推起飞

专业释义

    经济学

  • 无助推起飞