Of course 对比 Surely

在英语中何时使用每一个，包含含义、语域和例句。

Of course

前 1000（非常常见）

Surely

前 2000（常见） B1 adverb

最常见: Of course

	Of course	Surely
发音	🇬🇧 //əv kɔːs// 🇺🇸 //əv kɔrs//	🇬🇧 /["/ˈʃʊəli//ˈʃɔːli/"]/ 🇺🇸 /["/ˈʃʊrli/"]/
含义	肯定，很明显。 Definitely, it's obvious.	肯定；毫无疑问 certainly; without a doubt
例句	Are you joining us for dinner tonight? Of course!	Surely we should do something about it?
语域	中性	中性
常见程度	前 1000（非常常见）	前 2000（常见）
CEFR 等级	-	B1
词性		adverb
搭配	of course not, of course yes, of course you can, of course it is	surely believe, surely know, surely must
反义	-	doubtfully, unsure
常见错误	Using it in formal writing where a different expression is needed., Confusing it with other affirmations like 'certainly' or 'definitely'.	Confusing 'surely' with 'sure' — 'sure' can be an adjective., Using 'surely' as a response when a simple 'yes' would suffice., Omitting 'surely' in a sentence where it clarifies certainty.
用法说明	在非正式和正式场合都可用，用来肯定显而易见的事情。避免在非常正式的书面语中使用。 Used in informal and formal situations to affirm something obvious. Avoid in highly formal writing.	使用'当然'来表达确定性。它适用于口语和书面语，但在正式讨论中更常见。在非常随意的对话中，避免使用它，简单的词如'绝对'可能更合适。 Use 'surely' to express certainty. It’s appropriate in both spoken and written contexts but is more common in formal discussions. Avoid using it in very casual conversations where simpler words like 'definitely' might fit better.

在真实片段中看它

Of course.

Agatha Christies Poirot › S1 E1

You know her, of course.

And, of course, I paid my respect to Bubba himself.

Of course.

Agatha Christies Poirot › S1 E1

You know her, of course.

Of course

Yes, sir, they surely did.

Surely

常见问题：Of course 对比 Surely

Of course和Surely 有什么区别？

Of course: Definitely, it's obvious. Surely: certainly; without a doubt

哪个更常见：Of course和Surely？

Of course 在日常英语中最常见。

能各给一个例子吗？

Of course: Are you joining us for dinner tonight? Of course! Surely: Surely we should do something about it?

我可以互换使用 Of course和Surely 吗？

不总是。Of course和Surely 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。