核心词议：
n. 改进，改善；提高
improvement 基本解释
n. 改进，改善，改良，增进，进步；（美）装修，改良措施；利用，活用；更优秀的人，更进步的人
速记方法
速记技巧 词根词缀法 词根prov1.test，表示"测试，证明"；2.正直napproval批准，通过；赞成，同意approve赞成，赞许，同意+al表名词→n批准，通过；赞成，同意 词源考究法 来自improve，改进，改善。
知识扩展
重要短语
improvement in好转；表示原物有改进
continuous improvement持续改进；进取不懈
quality improvement质量改进
room for improvement改进的余地
improvement 变化形式
复数： improvements
中文词源： improvement 改进，改善 来自improve,改进，改善。 improvement
精选例句
1、 I never told my mother about my "miraculous" experience that summer, but she saw a slow but remarkable improvement in my classroom performance during the next year.
我从来没有告诉过母亲我那个夏天的“奇迹”经历，但她看到我在第二年的课堂表现有了缓慢但显著的进步。[机器自动翻译，如有错误，感谢纠错]
2、 I'm noticing that they've made improvements to this station.
我注意到他们对这个站做了改进。[机器自动翻译，如有错误，感谢纠错]
1、 After four months, the patients using the computerized CBT programs had no improvement in depression levels over the patients who were only getting usual care from their doctors.
四个月后，与只接受医生常规治疗的患者相比，接受计算机化CBT治疗的患者的抑郁水平并没有改善。
1、 A study of employees at health insurance provider Aetna revealed that roughly one quarter of those taking in-office yoga and mindfulness classes reported a 28% reduction in their stress levels and a 20% improvement in sleep quality.
一项针对医疗保险提供商安泰保险员工的研究显示，在参加办公室瑜伽和正念课程的员工中，约有四分之一的人表示，他们的压力水平降低了28%，睡眠质量提高了20%。
1、 When there is rapid improvement in the price and performance of technology, jobs that were once thought to be immune from automation suddenly become threatened.
当技术的价格和性能迅速提高时，曾经被认为不受自动化影响的工作突然受到威胁。
常见考点例句：
- The baseline to measure improvement is 1990 .
- 改善措施的基线于1990年确定。
- But there was room for improvement in certain groups .
- 但此类情况在某些群体还有改进的空间。
- He wasn 't sure this was an improvement .
- 他不确定这是一种进步。
- Hard data on trade finance are fragmentary , but suggest improvement .
- 尽管贸易融资的相关硬性数据并不完整，不过确实显示出了好转趋势。
- There 's nothing wrong with incremental improvement .
- 渐近式改良并没有什么错。
