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unrestricted submarine warfare

U 开头单词

常见例句

    原聲例句

  • It said unrestricted submarine warfare would begin immediately.

    • 權威例句

  • Outraged, yes, but it took two years and German resumption of unrestricted submarine warfare in early 1917 (which Mr Roberts strangely postpones to that September) to bring America to war—surely the longest reaction-time in the history of galvanism.
    ECONOMIST: The English-speaking world
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