alternation [ˌɔltɚˈneʃən, ˌæl-]

例句:

• Disc two gushes with much the same alternation of moods.
  来自BBC
• The alternation of sun and snow continued for the rest of our holiday.
  我们剩余的假期里依旧时而晴天时而下雪。
  
• Light and shade come in swift alternation ; Days and months flash by as quickly as a weaver's shuttle.
  光阴似箭,日月如梭.
  
• There is an alternation of black and white stripes in that cloth.
  那匹布黑白条纹相间.
  
• A skilful alternation of fugal sections with more openly dramatic chordal writing.
  来自A. Hopkins
• Thus she feels for them a complicated alternation of sympathy and antipathy.
  来自NEWYORKER