undergone [ˌʌndərˈgɔ:n-ˈgɑ:n]

例句:

• The feeding of dairy cows has undergone a revolution.
  乳牛的喂养方法发生了巨大的改变。
  
• In the last five years he's undergone a personal transformation.
  过去5年里他整个人发生了全新的转变。
  
• The camera has undergone only two minor tweaks since its introduction.
  那款相机自从推出以来仅经过两次小的改进。
  
• The ordeal he had undergone...was so much more harrowing.
  来自J. A. Michener
• The mainland's universities have undergone a dramatic expansion.
  来自SA
• The earth has undergone changes in climate since pre-history.
  来自SA