First of all 对比 Firstly 对比 Initially

在英语中何时使用每一个，包含含义、语域和例句。

First of all

前 2000（常见）

Firstly

正式 前 3000（常见） A2 adverb

Initially

前 2000（常见） B2 adverb

最正式: Firstly

	First of all	Firstly	Initially
发音	🇬🇧 //fɜːst əv ɔːl// 🇺🇸 //fɜrst əv ɔl//	🇬🇧 /["/ˈfɜːstli/"]/ 🇺🇸 /["/ˈfɜːrstli/"]/	🇬🇧 /["/ɪˈnɪʃəli/"]/ 🇺🇸 /["/ɪˈnɪʃəli/"]/
含义	开始时；要提到的第一点。 To start with; the first point to mention.	At the start of a list or explanation.	一开始；在开始时。 At first; in the beginning.
例句	First of all, we need to discuss the budget for next year.	There are two reasons for this decision: firstly…	Initially, the system worked well.
语域	中性	正式	中性
常见程度	前 2000（常见）	前 3000（常见）	前 2000（常见）
CEFR 等级	-	A2	B2
词性		adverb	adverb
搭配	first of all, we need, first of all, let's discuss, first of all, thank you, first of all, I want to, first of all, remember	firstly and secondly, firstly then, firstly I would like	initially thought, initially planned, initially focused
反义	-	lastly, finally	finally, ultimately, later
常见错误	Using it in the middle of a sentence instead of at the beginning., Confusing with 'firstly', which is more formal., Omitting 'of all' and saying only 'first'.	'Firstly' is not often used in informal contexts., Some learners confuse 'firstly' with 'first,' thinking they can use them interchangeably in all situations., Overusing 'firstly' when listing items can sound overly formal.	Using 'initial' as an adverb instead of 'initially'., Confusing 'initially' with 'ultimately' (which has the opposite meaning)., Placing 'initially' in the wrong position in a sentence.
用法说明	常用于介绍列表中的第一项。适用于口语和书面语境。避免在非常正式的场合使用。 Often used to introduce the first point in a list. Appropriate in both spoken and written contexts. Avoid in very formal settings.	Use 'firstly' to introduce the first point in formal writing or speeches. Avoid in casual conversations; 'first' is often preferred instead.	用'最初'来描述某事发生在开始时。适用于书面和口语，但在正式场合更常见。 Use 'initially' to describe something that happens at the start. It’s suitable for both written and spoken English but is more common in formal contexts.

在真实片段中看它

Yes. First of all, you're all done.

Agatha Christies Poirot › S1 E1

First of all. . .

Yes. First of all, you're all done.

Agatha Christies Poirot › S1 E1

First of all. . .

First of all

The Lord Of The Rings › The Fellowship Of The Ring

Do you know how the Orcs first came into being?

Firstly

常见问题：First of all 对比 Firstly 对比 Initially

First of all、Firstly和Initially 有什么区别？

First of all: To start with; the first point to mention. Firstly: At the start of a list or explanation. Initially: At first; in the beginning.

哪个更正式：First of all、Firstly和Initially？

Firstly 是其中最正式的。

哪个更高级：First of all、Firstly和Initially？

Initially 级别最高，在 CEFR 量表上为 B2。

能各给一个例子吗？

First of all: First of all, we need to discuss the budget for next year. Firstly: There are two reasons for this decision: firstly… Initially: Initially, the system worked well.

我可以互换使用 First of all、Firstly和Initially 吗？

不总是。First of all、Firstly和Initially 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。