1.  improvement
2.  improve
3.  perfection
4.  ameliorate

• 1. 改进: Improve | improvement
• 2. 持续改进: continual improvement | continuous improvement | Continual improvement process | Kaizen
• 3. 改进作风: improvements | refine one's work style

更多释义

• 1.他们在研究如何改进人们饮食。
  They're researching into ways of improving people's diet.
  dict.yoduao.com
• 2.我们得考虑改进营销方法。
  We need to look to ways of improving our marketing.
  dict.yoduao.com
• 3.这些计划还能怎么改进呢？
  How might the plans be improved upon?
  dict.yoduao.com

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