Cool MateAs far as I know 对比 Last i heard
在英语中何时使用每一个，包含含义、语域和例句。
As far as I know
非正式10000 以上（较少见）
Last i heard
前 2000（常见）
最正式: Last i heard最常见: Last i heard
| As far as I know | Last i heard | |
|---|---|---|
| 发音 | 🇬🇧 //əz fɑːr æz aɪ nəʊ//🇺🇸 //əz fɑːr æz aɪ noʊ// | 🇬🇧 //lɑːst aɪ hɜːd//🇺🇸 //læst aɪ hɜrd// |
| 含义 | What I understand to be true based on my knowledge. | The most recent information I got. |
| 例句 | As far as I know, the meeting is still scheduled for tomorrow. | Last I heard, she was working at the new cafe downtown. |
| 语域 | 非正式 | 中性 |
| 常见程度 | 10000 以上（较少见） | 前 2000（常见） |
| 搭配 | as far as I know, as far as I can tell, as far as I remember | last I heard about, last I heard from, last I heard of |
| 常见错误 | Using it in formal writing contexts where precise language is preferred., Confusing it with 'as much as I know', which is less common., Not using a comma before it if it starts a sentence. | Using 'last I heard' with non-past contexts., 'Last I've heard' is often incorrectly used instead of the correct past form., Omitting to specify the subject when necessary. |
| 用法说明 | 'As far as I know' is casual and often used in conversation to express uncertainty or limitations in knowledge. It's not usually appropriate for formal writing. | Used to refer to the latest information someone has. It can be informal when used in conversation. Avoid using in formal writing. |
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常见问题：As far as I know 对比 Last i heard
As far as I know和Last i heard 有什么区别？
As far as I know: What I understand to be true based on my knowledge. Last i heard: The most recent information I got.
哪个更正式：As far as I know和Last i heard？
Last i heard 是其中最正式的。
哪个更常见：As far as I know和Last i heard？
Last i heard 在日常英语中最常见。
能各给一个例子吗？
As far as I know: As far as I know, the meeting is still scheduled for tomorrow. Last i heard: Last I heard, she was working at the new cafe downtown.
我可以互换使用 As far as I know和Last i heard 吗？
不总是。As far as I know和Last i heard 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。