例句
英语六级真题
  • Richard Jackson and Neil Howe of America's CSIS, in a thoughtful book called The Graying of the Great Powers, argue that, among other things, the ageing of the developed countries will have a number of serious security implications.
    出自-2010年12月阅读原文
英英词典释义
  • Noun
    1. United States feminist who was active in the women's suffrage movement (1819-1910)
    2. United States inventor who built early sewing machines and won suits for patent infringement against other manufacturers (including Isaac M. Singer) (1819-1867)