dizzying  
adjective uk/ˈdɪz.i.ɪŋ/ us/ˈdɪz.i.ɪŋ/
  (FEELING)      
  令人眩晕的,令人头晕目眩的,令人眼花缭乱的
causing you to feel dizzy
  a dizzying display of acrobatics 让人眼花缭乱的杂技表演 
   (QUALITY)      
 太快的;令人困惑的
very fast or confusing
  The dizzying pace of political change in the country caught many people by surprise. 这个国家的政治变革快得让很多人感到吃惊。