英语词汇“flying fortress”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	flying fortress
释义	flying fortress 基本例句 n.空中堡垒;航行堡垒用作名词The U. S. Army Air Forces believed in daylight bombing with the heavily defended Fortress type of bomber as the backbone of the organization.美国陆军航空队，相信在白昼轰炸，应以防御性的空中堡垒重轰炸机为组织之骨干。
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