amelioration [əˌmiljəˈreʃən]

例句:

• One of the most startling proposals for amelioration, in fact, came from Wall Street.
  实际上, 最令人注意的改良建议之一出自华尔街.
  
• No other question received as much attention or stimulated as many investigations and proposals for amelioration.
  没有其它问题受到如此之多的注意,或引起这样多的调查和改良的建议.
  
• I've heard that Liebig has made some wonderful discoveries in the amelioration of soils.
  我听人说利比黑在改善土壤这方面有过很了不得的发现.
  
• We have got them in good locations and more in the pipeline, but that's where you will see an amelioration or a modification.
  来自THETIMES