“一个人”用英语表示为“a person”,people 作为“人,人们”是集体名词,所以不能用a/one.
person 英[?p?:sn] 美[?p?:rsn]

n. 人; (语法) 人称; 身体; 容貌;
组词
Contact Person 联系人 ; 联络人 ; 联系人员 ; 联络人姓名
missing person 失踪者 ; 寻人 ; 第一集 ; 寻人启示
Reasonable person 理性自然人 ; 理性人 ; 合理人 ; 理性的人
Good Person 好人 ; 好人专辑 ; 我爱 ; 好的人
mononymous person 简称
例句
1、What can you do with a person like that?
碰上这么一个人,你有什么办法?
2、Mary was the first person to think of the idea.
玛丽是第一个想到这个主意的人。
3、The age of a person is usually reckoned from his or her date of birth.
一个人的年龄一般是从他的或她的出生日期算起。
4、She is an attractive person.
她是个吸引男人的人。
5、He was a person out of the ordinary.

他是一个不同凡响的人物。
一个英语短语英语中的怎么说
一个可以是a,元音字母前用an
例:This is an apple.
It's a ball.
only one 也可以表示唯一的一个,the 表示特指
例:You are the only one who really know me at all.
a few 与 a little 都表示肯定的意思,指“有一点,有一些”。a little加可数名词,a bit 加不可数名词
例: I bought a few newspapers.
There is a little ink in my pen.
I've got a bit of shopping to do.
some,a lot of ,a number of 也是一些,直接加名词。some用于肯定句
例:He gave me some good advice.
There are a lot of people.
A great number of studens are having class now.
any 用于否定句或者疑问句
例: Are there any biscuits on the desk ?

这些基本就够用了。
An English phrase
例句
如果你不理解一个英语单词或短语,问问你自己它是什么词性。
If you don't understand a word or phrase in English, ask yourself ① what part of speech it is.


