逍遥黑猫
21的英文是twenty-one。
twenty-one，音标['twenti.wʌn]，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，在几一和个位基数词形式之间添加连字符“-”。
1、num.二十一，二十一个。
2、n.二十一，二十一个，二十一点牌。
1——50这些数字的英文：
1、1——10
One、two、threefour、five、six、seven、eight、nine、ten.
2、11——20
Eleven、twelve、thirteen、fourteen、fifteen、sixteen、seventeen、eighteen、nineteen、twenty.
3、21——30
twenty-one、twenty-two、twenty-three、twenty-four、twenty-five、twenty-six、twenty-seven、twenty-eight、twenty-nine、thirty.
4、31——40
thirty-one、thirty-two、thirty-three、thirty-four、thirty-five、thirty-six、thirty-seven、thirty-eight、thirty-nine.
5、41——50
Forty、forty-one、forty-two、forty-three、forty-four、forty-five、forty-six、forty-seven、forty-eight、forty-nine、fifty.
Mary瑶瑶
21的英文：twenty-one。
重点词汇：
twenty英 [ˈtwenti] 美 [ˈtwɛnti, ˈtwʌn-]
n.二十，二十个;二十多岁;二十年代;许多，大量
num.二十。adj.二十的。
one英 [wʌn] 美 [wʌn]
num.一个;（数字）一;（基数）一，第一。
twenty-one的用法示例如下：
1.Twenty-one days later, I left London.
二十一天后，我离开了伦敦。
2.Yang Liwei spent about twenty-one hours in space.
杨利伟在宇宙中度过了大约二十一个小时。
3.Has been raised from eighteen to twenty-one.
由原来的十八岁提高到二十一岁。
4.It lasted a record twenty-one days.
那持续一个创纪录的二十一天。
扩展资料：
两位数书写英文中间一定要加上小横线。
twenties英 [t'wentɪz] 美 [t'wentɪz]
n.二十年代;二十，20( twenty的名词复数 )。
twentieth英 ['twentɪəθ] 美 [ˈtwɛntiɪθ, ˈtwʌn-]
n.二十分之一;（某月的）二十日。
adj.第二十的;二十分之一的。num.第二十。
twentieths
n.第二十个( twentieth的名词复数 );二十分之一。
v.第二十个( twentieth的第三人称单数 );二十分之一;第二十的，第二十个的;二十分之一的。
sisley0522
21岁的时候，你们说我们能积累到多少个英文单词呢?以下是我给大家带来21的英文读音，以供参阅。
twenty-one英 ['twentɪˌwʌn]美 ['twentɪˌwʌn]
1. He was stricken at twenty-one with a crippling malady.
他21岁时突患致残重疾。
2. 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。
3. I was twenty-two — no, twenty-one.
我当时22岁，哎呀不对，是21岁。
4. When Joe is twenty - one he will have money to burn.
乔满21岁时就会有很多的钱.
5. Winterton has never had a sniff of a government job in his entire twenty-oneyears in parliament.
在国会的整整21年里，温特顿没有得到过任何在政府里工作的机会。
6. There are fifteen books on the first shelf, twenty - one on the second, that makes thirty - six in all.
书架的第一层有15本书, 第二层有21本, 总共是36本.
7. He noticed that the clock on the mantelpiece said nine, meaning twenty - one.
他注意到壁炉架上的座钟已是九点了, 那就是说二十一点.
8. When you're twenty - one , you can fly off anyplace you want.
等你到 二十一 岁, 你爱到哪儿就可以飞到哪儿去.
9. These regulations relate only to people under the age of twenty - one.
这些规则仅适用于21岁以下者.
10. Twenty - one of these were Greek and included five hospital ships.
其中有二十一艘是希腊的船只,并且包括五艘医疗救护船.
11. Not yet twenty - one , she exhibited the demeanour of a woman of forty.
尽管还不到 二十一 岁, 她已经流露出四十岁女人的风度了.
12. On a crisp November day I encountered a twenty - one - year - old woman.
秋高气爽的11月里,有一天我遇到一位21 岁 的女子.
13. Would not the light be fading at twenty - one hours on an August evening?
难道八月里的夜晚,到了二十一点,天还没有黑?
14. The Diet is chosen under a franchise that is universal for citizens aged twenty - one and over.
国会由年满 二十一 岁以上的公民普遍选举产生.
15. All the young men at Pulpit Hill who were eligible - those who were twenty - one - were going into service.
讲坛山上所有适龄的青年 -- 也就是说,所有二十一 岁 的青年 -- 都去入伍了.
1. He was stricken at twenty-one with a crippling malady.
他21岁时突患致残重疾。
2. 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。
3. I was twenty-two — no, twenty-one.
我当时22岁，哎呀不对，是21岁。
4. When Joe is twenty - one he will have money to burn.
乔满21岁时就会有很多的钱.
5. Winterton has never had a sniff of a government job in his entire twenty-one years in parliament.
在国会的整整21年里，温特顿没有得到过任何在政府里工作的机会。
6. There are fifteen books on the first shelf, twenty - one on the second, that makes thirty - six in all.
书架的第一层有15本书, 第二层有21本, 总共是36本.
7. He noticed that the clock on the mantelpiece said nine, meaning twenty - one.
他注意到壁炉架上的座钟已是九点了, 那就是说二十一点.
8. When you're twenty - one , you can fly off anyplace you want.
等你到 二十一 岁, 你爱到哪儿就可以飞到哪儿去.
9. These regulations relate only to people under the age of twenty - one.
这些规则仅适用于21岁以下者.
10. Twenty - one of these were Greek and included five hospital ships.
其中有二十一艘是希腊的船只,并且包括五艘医疗救护船.
11. Not yet twenty - one , she exhibited the demeanour of a woman of forty.
尽管还不到 二十一 岁, 她已经流露出四十岁女人的风度了.
12. On a crisp November day I encountered a twenty - one - year - old woman.
秋高气爽的11月里,有一天我遇到一位21 岁 的女子.
13. Would not the light be fading at twenty - one hours on an August evening?
难道八月里的夜晚,到了二十一点,天还没有黑?
14. The Diet is chosen under a franchise that is universal for citizens aged twenty - one and over.
国会由年满 二十一 岁以上的公民普遍选举产生.
15. All the young men at Pulpit Hill who were eligible - those who were twenty - one - were going into service.
卉峰呢喃
是数词21的英语吗？英语：21，twenty- one What’s fifteen plus six ? Fifteen plus six is “ twenty - one.如果是汉语的阿姨，英语： aunt , Who is that woman in red coat over there?Oh, she is my aunt Lucy.
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