Word · CEFR B2 · Frequency #3478
effectiveness
效力；有效性
核心释义
the quality of being effective; the ability to bring about a desired effect
- 1.
有效性,达到结果的属性。
The property of being effective, of achieving results.
- 2.
生效的力量；能够产生效果的品质
power to be effective; the quality of being able to bring about an effect
- 3.
实现结果的能力或潜力。
The capacity or potential for achieving results.
- 4.
产生强烈生理或化学效应的能力
capacity to produce strong physiological or chemical effects
- 5.
某物达到结果的程度。
The degree to which something achieves results.
有效性,达到结果的属性。；生效的力量；能够产生效果的品质；实现结果的能力或潜力。；产生强烈生理或化学效应的能力；某物达到结果的程度。
用法In use
The effectiveness of the new training program was clear from the test results.
用法提示：effectiveness 作不可数名词，用 the effectiveness of 结构表示某事物的效果。
We measured the effectiveness of the medicine in reducing pain.
用法提示：effectiveness 为名词，作 measured 的宾语，表示“有效性”。
Many people question the effectiveness of online advertising.
用法提示：effectiveness 作名词，在句中作 question 的宾语，指“效果/有效性”。
the effectiveness of sth
The effectiveness of the new drug is still under study.
这种新药的有效性仍在研究中。
effectiveness in doing sth
相关词与表达Connections
搭配Collocations
- improve effectiveness
- 提高有效性
- We need to improve the effectiveness of our training program.我们需要提高培训计划的有效性。
- measure effectiveness
- 衡量有效性
- It is difficult to measure the effectiveness of advertising campaigns.衡量广告活动的有效性是困难的。
- overall effectiveness
- 整体有效性
- The overall effectiveness of the new system has been questioned.新系统的整体有效性受到了质疑。
- cost-effectiveness
- 成本效益
- Cost-effectiveness is a key factor in choosing a treatment method.成本效益是选择治疗方法的关键因素。
- treatment effectiveness
学习提示Learner notes
记忆技巧Memory Tip
联想：effect（效果）+ ness（名词后缀）→ 产生效果的能力，即有效性。
语境与语域Context & Register
常见场景：学术写作、商业报告、管理评估 该词多用于学术、商业或管理类正式语境，表示达到预期效果的能力。
语法说明Grammar Note
不可数名词，常与介词of连用，如the effectiveness of sth.
发音与拼写Pronunciation & Spelling
These words share the common suffix "-ness" but do not necessarily rhyme with "effectiveness" because their stressed vowels differ (e.g., /ɛ/ in effectiveness vs. /æ/, /ɪ/, /aɪ/, /iː/, /ɑː/, /aɪ/). Only the unstressed /nɪs/ ending is identical.
一起学习词形Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.