Sure as he's born 对比 Undoubtedly

在英语中何时使用每一个，包含含义、语域和例句。

Sure as he's born

非正式10000 以上（较少见）

Undoubtedly

正式前 5000（相当常见）C1adverb

最正式: Undoubtedly最常见: Undoubtedly

	Sure as he's born	Undoubtedly
发音	🇬🇧 //ʃʊə əz hiːz bɔːn//🇺🇸 //ʃʊr əz hiz bɔrn//	🇬🇧 //ʌnˈdaʊtɪdli//🇺🇸 //ʌnˈdaʊtədli//
含义	certain or sure	肯定；毫无疑问。Definitely; without a doubt.
例句	I will be there tomorrow, sure as he's born.	She is undoubtedly the best candidate for the position.
语域	非正式	正式
常见程度	10000 以上（较少见）	前 5000（相当常见）
CEFR 等级	-	C1
词性		adverb
搭配	sure as can be, sure as usual	undoubtedly true, undoubtedly clear, undoubtedly helpful
反义	uncertain, unlikely, doubtful	doubtfully, questionably, uncertainly
常见错误	Using in formal writing contexts, Confusing with similar expressions like 'sure as sugar', Misplacing the phrase within sentences	Confused with 'undoubtably', which is incorrect., Omitting it when certainty is implied., Using it in informal contexts where 'definitely' is more suitable.
用法说明	Used often in spoken language, this phrase conveys strong certainty about something. It's not typically used in formal writing or situations.	用于强调确定性或强烈信念；通常在正式写作或演讲中使用，在日常对话中不常见。Used to emphasize certainty or strong belief; typically in formal writing or speeches, not common in casual conversation.

在真实片段中看它

Sure as he's born和Undoubtedly 有什么区别？

Sure as he's born: certain or sure Undoubtedly: Definitely; without a doubt.

哪个更正式：Sure as he's born和Undoubtedly？

Undoubtedly 是其中最正式的。

哪个更常见：Sure as he's born和Undoubtedly？

Undoubtedly 在日常英语中最常见。

能各给一个例子吗？

Sure as he's born: I will be there tomorrow, sure as he's born. Undoubtedly: She is undoubtedly the best candidate for the position.

我可以互换使用 Sure as he's born和Undoubtedly 吗？

不总是。Sure as he's born和Undoubtedly 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。