21的英文怎么写呀
21的英文twenty-one;
从 20——99 整数几十中除twenty,thirty, forty,fifty,eighty为特殊形式外,sixty,seventy,ninety都是其个位数形式后添加后缀-ty构成。表示几十几时,在几十和个位基数词形式之间添加连字符“-”.
We waited twenty-one years, don\'t fail us now.
我们等了21年了,如今不要让我们失望。
He was stricken at twenty-one with a crippling malady.
他21岁时突患致残重疾。
I was twenty-two — no, twenty-one.
我当时22岁,哎呀不对,是21岁。
He said he was twenty-one years old and the employment agency took him on faith.
他说他21岁,职业介绍所毫不怀疑就相信了他。
Twenty-one years have passed since then.
尔来二十有一年矣。