• 1. Drastic changes: 风云突变 | 翻天覆地的变化 | 激烈的改变
• 2. drastic changes in eastern Europe: 东欧剧变 | 苏东剧变
• 3. drastic historical changes: 历史风云

• 1.Against a backdrop of drastic changes in economy and population structure, younger Americans are drawing a new 21st-century road map to success, a latest poll has found.
  一项最新民调发现，在经济和人口结构发生巨变的背景下，美国的年轻一代正在绘制一幅21世纪通向成功的地图。
  dict.yoduao.com
• 2.Rapid, drastic changes in personality.
  个性出现急剧、彻底的变化。
  dict.yoduao.com
• 3.Drastic changes, however, were never likely.
  然而，激烈的变动从来不可能发生。
  dict.yoduao.com

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