Cool MateBut he sure is fast 对比 Certainly 对比 Definitely
在英语中何时使用每一个，包含含义、语域和例句。
But he sure is fast
前 3000（常见）
Certainly
前 1000（非常常见）A2adverb
Definitely
前 1000（非常常见）A2adverb
| But he sure is fast | Certainly | Definitely | |
|---|---|---|---|
| 发音 | 🇬🇧 //bʌt hiː ʃʊə ɪz fæst//🇺🇸 //bʌt hiː ʃʊr ɪz fæst// | 🇬🇧 /["/ˈsɜːtnli/"]/🇺🇸 /["/ˈsɜːrtnli/"]/ | 🇬🇧 /["/ˈdefɪnətli/"]/🇺🇸 /["/ˈdefɪnətli/"]/ |
| 含义 | He is definitely quick. | 肯定；一定。Definitely; for sure. | 当然，毫无疑问For sure, without a doubt |
| 例句 | But he sure is fast when it comes to running. | Without treatment, she will **almost certainly** die. | I definitely remember sending the letter. |
| 语域 | 中性 | 中性 | 中性 |
| 常见程度 | 前 3000（常见） | 前 1000（非常常见） | 前 1000（非常常见） |
| CEFR 等级 | - | A2 | A2 |
| 词性 | adverb | adverb | |
| 搭配 | he sure is, but he, is fast | certainly agree, certainly possible, certainly not, certainly true, certainly yes | definitely agree, definitely believe, definitely know |
| 反义 | - | uncertainly, doubtfully | doubtfully, uncertainly |
| 常见错误 | Using 'sure' without 'but' in a contrasting statement., Confusing 'fast' with 'quick' - they are similar but have different usages in context. | 'Certainly' is often incorrectly used in place of 'certain' in adjectives., Learners might confuse 'certainly' with 'definitely' without noticing the subtle nuance., Some learners use 'certainly' in inappropriate contexts, such as casual greetings. | Often confused with 'defiantly' which means resisting authority., Sometimes spelled incorrectly as 'definately'. |
| 用法说明 | Use in informal contexts, such as conversations or storytelling. Avoid in formal writing. | 当你想强调肯定或同意时可以使用‘当然’。它比‘好’更正式，适合在专业场合使用，但在随意的对话中可能显得太强烈。Use 'certainly' when you want to emphasize affirmation or agreement. It is more formal than 'sure' and works well in professional settings, but might feel too strong in casual conversations. | 使用'肯定'来强调确定性。它在口语和书面英语中都很合适。避免在过于正式的场合使用，像'当然'这样的替代词可能更合适。Use 'definitely' to emphasize certainty. It fits well in both spoken and written English. Avoid using it in overly formal contexts where alternatives like 'certainly' might be more suitable. |
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常见问题：But he sure is fast 对比 Certainly 对比 Definitely
But he sure is fast、Certainly和Definitely 有什么区别？
But he sure is fast: He is definitely quick. Certainly: Definitely; for sure. Definitely: For sure, without a doubt
能各给一个例子吗？
But he sure is fast: But he sure is fast when it comes to running. Certainly: Without treatment, she will **almost certainly** die. Definitely: I definitely remember sending the letter.
我可以互换使用 But he sure is fast、Certainly和Definitely 吗？
不总是。But he sure is fast、Certainly和Definitely 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。