to improve

• 改进工作作风

  improve one's working style

• 改进企业的工作

  improve the work of the enterprise

• 改进操作技术

  improve one's operating technique

• 改进教学方法

  improve educational methods

• 改进服务态度

  improve service

• 对施工设计作了一系列改进

  make a series of improvements to the construction design