gradation [ɡreˈdeʃən]

例句:

• Note the subtle gradation of / in colour in this painting.
  注意这幅画中色彩的细微变化.
  
• It is hard to understand all the minute gradation of their bureaucracy.
  很难弄清楚他们那套官僚体制全部细微的等级分别.
  
• The fourth way is taken from the gradation to be found in things.
  第四个论证出自在事物中发现的等级.
  
• One continual gradation of political errors.
  来自C. Cibber
• It needed to be easy and quick to play, require some skill, have gradation for world record separation, and lots of fun.
  来自BBC
• It looks like a gradation or a transition from broad-toothed makos to the modern white shark.
  来自BBC