例句
I was surprised by the effectiveness of this cleaner.
这种清洁剂的效果让我很惊讶。
Researchers should evaluate the effectiveness of educational programmes before recommending their adoption across the national school system.
研究人员应先评估教育项目的成效，再建议在全国学校系统中推广。
常用搭配
- evaluate effectiveness｜评估有效性
- improve effectiveness｜提高成效
- demonstrate effectiveness｜证明有效性
- cost effectiveness｜成本效益
词形与相关词
effective (adj.) · effectively (adv.) · ineffective (adj.) · effect (n.)
用法提示
effectiveness重效果；efficiency重时间与资源效率。