1
one + can/may + verb
这里'one'泛指任何人，正式文体中常用。
One can see the difference.
人们可以看出差异。
一个(的)
先理解核心含义，再看它在真实句子里的用法。
一个(的)；用于强调,代替“a”
A single.
One can see the difference.
人们可以看出差异。
Prepare the learner guide for this word
可生成：学习解释 Learner guide。只有点击后才会开始生成。
一个(的)
A single.
用于强调,代替“a”
Used for emphasis in place of a
He wrote a one on the paper.
他在纸上写了一个1。
Count from one to ten before you answer.
回答前，从1数到10。
The answer to the riddle is one.
谜语的答案是1。
这里'one'泛指任何人，正式文体中常用。
One can see the difference.
人们可以看出差异。
替代前文提到的可数名词。
I like the blue one.
我喜欢那个蓝色的。
I have one car.
我有一辆车。
表示群体中的一员。
She is one of my friends.
她是我的朋友之一。
Not this
I want one apple.
Use this
I want an apple.
中文用"一个"表示不定冠词和数字一，英语中表示泛指时用"a/an"，强调数量时才用"one"。
Not this
I bought a new phone. One is very expensive.
Use this
I bought a new phone. It is very expensive.
指代前文特指的单数事物时，英语用"it"，而"one"通常用于泛指或避免重复，且不特指同一事物。
Choose the next layer that will help you use one with more confidence.
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Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
Use one naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
作代词可指代前文提及的单数可数名词；作限定词表示'一个'；常用于'one of'结构
该词属于 Oxford 核心词汇，值得优先掌握常见搭配和句型。
Collins 词频等级为 5，建议结合例句记忆，而不是只背中文释义。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.