在他20岁那年用英语怎么说?就是用这样的句型:when he was in his twenties.为什么twenties要用复数?有没有固定句型?那么这句话怎么翻译啊？when he was in his twenties谢谢

在他20岁那年用英语怎么说?就是用这样的句型:when he was in his twenties.为什么twenties要用复数?有没有固定句型?那么这句话怎么翻译啊？when he was in his twenties谢谢
在他20岁那年用英语怎么说?
就是用这样的句型:when he was in his twenties.为什么twenties要用复数?有没有固定句型?
那么这句话怎么翻译啊？when he was in his twenties
谢谢

在他20岁那年用英语怎么说?就是用这样的句型:when he was in his twenties.为什么twenties要用复数?有没有固定句型?那么这句话怎么翻译啊？when he was in his twenties谢谢
我来给你详细
1.“在他20岁那年”,翻译是：“when he was twenty years old”
2.在“when he was in his twenties ”中“ twenties ”用复数是因为并不是说他就整二十岁,而是说在他二十多岁（20-29）的时候.
对于年龄的表达需注意单复数,因为这直接决定翻译的准确性.
以上解答希望对你有所帮助.

20-30岁之间

twenties代表的是20-29岁这一段年龄的固定搭配。
在他20岁那年应该是 at his age of twenty

twenties，这里表示20多岁。
另外，nineteen twenties 表示20世纪20年代

when he was twenty years old

英语“年龄”表示法


1?表示“整岁”，直接用基数词或year，age，例如“他20岁”可表示为：
He is twenty．
He is twenty years old．
He is a twenty-year-old man．
He is aged twenty．
He is at age twenty．

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英语“年龄”表示法


1?表示“整岁”，直接用基数词或year，age，例如“他20岁”可表示为：
He is twenty．
He is twenty years old．
He is a twenty-year-old man．
He is aged twenty．
He is at age twenty．
He is at the age of twenty．
He is twenty years of age．
2?表示“在某人几十多岁”，用“in one's ＋基数词复数形式”，例如：
他七十多岁。He is in his seventies．（从70岁到79岁之间）
她五十多岁。She is in her fifties．（从50岁到59岁之间）
还可以借助early，middle，late来表达得更明确一些，例如：
那女孩今年二十二、三岁。The girl is in her early twenties．
他今年十四、五岁。He is in his middle teens．
她今年二十八、九岁。She is in her late twenties．
3?表示“快满多少岁”用进行时或将来时，例如“他快满十八岁了”可说成：
He is getting on for eighteen．
He is going on eighteen years old．
He willbe eighteen years old．
It willbe his eighteenth birthday．
4?表示“不满多少岁”，用副词barely，nearly，al- most，quite，yet，just等，例如“她不满十七岁”有以下几种说法：
She is barely ／nearly ／almost seventeen．
She is not quite ／yet seventeen．
She is just under seventeen．
5?表示“差多久满多少岁”用介词off，例如：
他差5个月就满19岁了。He is five months off nineteen．
她再过3年就50岁了。She is three years off fifty．
6?表示“超过多少岁”用介词past，例如：
他已年过50。He is past fifty．
他是一个过了中年的人。He is a man past middle age．
那孩子两岁零两个月。The baby is two months past two years old．

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when he was twenty years old,
at his age of twenty,
在他二十多岁的时候，

when he was in his twenties
指的是在他二十多岁的时候

在他二十几岁的时候
in one's twenties(或者thirties,...)是固定搭配，表示在某人二十几岁（三十几岁，...）的时候

in one's twenties 在某人20多岁的时候，固定搭配，记着吧。
when he was in his twenties 当他20多岁的时候
意思是一样的，但是第二种说法太罗嗦了。

在他二十几岁的时候