在二十世纪

• In the 1950 ' s , these machines were owned by only a few people
  在二十世纪五十年代，仅仅少数人才拥有这些机器。
• The iater 20th century
  在二十世纪后期，人类看到
• Many colonies in africa became independent nations in the 1950 ' s
  非洲许多殖民地在二十世纪五十年代成了独立国家。
• In the short period of one hundred years or so , namely the 20
  仅在二十世纪短短的一百年内，世界人口便增加了四倍。
• In the 1950 ’ s a lot of japanese goods begin to show up in america
  在二十世纪五十年代，大量的日货在开始出现在美国。
• This new method was brought in from the western countries in the 1990s
  这种新方法是在二十世纪九十年代从西方国家引进的。
• This new method was brought in from the western countries in the 1990s
  这种新方法是在二十世纪九十年代从西方国家引进的。
• The land became infertile during the nineteen seventies and early eighties
  在二十世纪70年代到80年代，土地曾一度异常贫瘠。
• It is obscene that people should still be dying of starvation in the 1980s
  在二十世纪八十年代仍有许多人死于饥饿,真是低级。
• Pele holds a place among the greatest soccer players of the twentieth century
  球王贝利在二十世纪的最佳足球员当中占有一席之地。