Cool MateEfficacy 对比 Utility
在英语中何时使用每一个，包含含义、语域和例句。
Efficacy
正式10000 以上（较少见）
Utility
前 2000（常见）C1noun
最正式: Efficacy最常见: Utility
| Efficacy | Utility | |
|---|---|---|
| 发音 | 🇬🇧 //ˈɛfɪkəsi//🇺🇸 //ˈɛfɪkəsi// | 🇬🇧 /["/juːˈtɪləti/"]/🇺🇸 /["/juːˈtɪləti/"]/ |
| 含义 | 有效性，或者某东西有多好用。Effectiveness or how well something works. | 有用的或有帮助的东西。Something that is useful or helpful. |
| 例句 | The efficacy of the new vaccine was confirmed in clinical trials. | a privatized electricity utility |
| 语域 | 正式 | 中性 |
| 常见程度 | 10000 以上（较少见） | 前 2000（常见） |
| CEFR 等级 | - | C1 |
| 词性 | noun | |
| 搭配 | clinical efficacy, evaluate efficacy, prove efficacy, demonstrate efficacy, measure efficacy | municipal, public, state-owned, company, bill, commission, great, high, limited, have, maximize, enhance, of… utility |
| 反义 | - | uselessness, ineffectiveness, inutility |
| 常见错误 | Confused with 'efficiency', which refers to doing things quickly and without waste., Often used without proper context; needs to specify what is being evaluated., Mispronounced, especially by non-native speakers. | Confused with 'utilize' — remember 'utility' is the noun form., Using it interchangeably with 'function' — 'utility' refers to usefulness, not just the role of something., Incorrectly pluralizing it as 'utilities' when referring to a general concept. |
| 用法说明 | 主要用在研究、医学和政策讨论等正式场合。日常对话中不太常用。Used primarily in formal contexts like research, medicine, and discussions about policy. Less common in everyday conversation. | “Utility”可以用在技术或日常语境中。在讨论服务、工具或资源时很常见。避免在随意的或过于情绪化的话题中使用它。Use 'utility' in technical or everyday contexts. It's common in discussions about services, tools, or resources. Avoid using it in casual or overly emotional topics. |
常见问题：Efficacy 对比 Utility
Efficacy和Utility 有什么区别？
Efficacy: Effectiveness or how well something works. Utility: Something that is useful or helpful.
哪个更正式：Efficacy和Utility？
Efficacy 是其中最正式的。
哪个更常见：Efficacy和Utility？
Utility 在日常英语中最常见。
能各给一个例子吗？
Efficacy: The efficacy of the new vaccine was confirmed in clinical trials. Utility: a privatized electricity utility
我可以互换使用 Efficacy和Utility 吗？
不总是。Efficacy和Utility 相关，有时可以互换，但在语域、常见程度和用法上不同，所以换用可能改变意思或语气。替换前先看看上面的区别。