Question

20——90用英语怎么写

Answer 1

20到90的英语是twenty、thirty、forty、fifty、sixty、seventy、eighty、ninety。
表示数目多少或顺序先后的词叫做数词(numeral)。数词与不定式代词很相似，其用法相当于名词与形容词。
数词有两种。表示数目多少的数词叫做基数词(cardinal
numeral)，如
one，ten，fifty-two等。表示顺序先后的数词叫做序数词(ordinal
numeral)，如
first，tenth，fiftieth等。
　1)1-12的基数词是：
one
1,
two
2,
three
3,
four
4,
five
5,
six
6,
seven
7,
eight
8,
nine
9,
ten
10,
eleven
11,
twelve
12.
13-19，皆由3-9加后缀-teen构成，即：
thirteen
13,
fourteen
14,
fifteen
15,
sixteen
16,
seventeen
17,
eighteen
18,
nineteen
19.
(注意thirteen，fifteen，eighteen的拼法)
20-90等十位数均由2-9加加后缀-ty构成，即：
twenty
20,
thirty
30,
forty
40,
fifty
50,
sixty
60,
seventy
70,
eighty
80,
ninety
90.
21-29由十位数20加个位数1-9构成，中间须有连字符“-”，即：
twenty-one
21,
twenty-two
22,
twenty-three
23,
twenty-four
24,
twenty-five
25,
twenty-six
26,
twenty-seven
27,
twenty-eight
28,
twenty-nine
29.
其它的十位数照些类推，如：
thirty-one
31,
forty-
two
42,
fifty-three
53,
sixty-
four
64,
seventy-five
75,
eighty-six
86,
ninety-seven
97.
2)百位数由1-9加hundred构成，如包含十位数及个位数，中间用and连接，也可以不用;如只包含个位数，即十位数为零时，则and不可省。如：
a
(one)
hundred
100
two
hundred
200
three
hundred
300
seven
hundred
and
six
706
a
(one)
hundred
(and)
twenty-five
125
three
hundred
(and)
forty-one
341
nine
hundred
(and)
eighty-seven
987
twelve
hundred
1200
(英语中从1100-1900之间的整数常用hundred表示)
3)千位数由1-9加thousand构成，其后的百、十、个位数构成方法同前。如：
a
(one)
thousand
1000
two
thousand
2000
three
thousand
3000
five
thousand
six
hundred
5600
six
thousand
eight
hundred
6800
a
(one)
thousand
one
hundred
(and)
forty-nine
1149
(此处hundred之前不可用a
)
three
thousand
five
hundred
(and)
thirty-seven
3537
英语里没有“万”这一单位，万也用thousand表示。如：
ten
thousand
10
000
twenty
thousand
20
000
thirty
thousand
30
000
ten
thousand
one
hundred
10
100
twenty
thousand
two
hundred
(and)
thirty
20
230
forty
thousand
seven
hundred
(and)
eighty-five
40
785
fifty-five
thousand
four
hundred
(and)
ninety-three
55
493
十万的说法是：
a
(one)
hundred
thousand
100
000
two
hundred
thousand
200
000
three
hundred
thousand
300
000
one
hundred
and
one
thousand
101
000
(此处thousand之前不可用a
)
two
hundred
twenty
thousand
220
000
three
hundred
forty
thousand
five
hundred
340
500
four
hundred
sixty-two
thousand
seven
hundred
(and)
eighty-nine
462
789
4)百万的说法是：
a
(one)
million
1
000
000
two
million
2
000
000
three
million
3
000
000
two
million
three
hundred
thousand
2
300
000
three
million
four
hundred
twenty-one
thousand
five
hundred
3
421
500
four
million
five
hundred
thirty-five
thousand
six
hundred
(and)
fifty-nine
4
535
659
千万及千万以上的说法是：
sixty
million
6000万
five
hundred
million
5亿
eight
billion
80亿
thirty
billion
3百亿(等于美国英语thirty
billion)
a
(one)
hundred
billion
1千亿(等于美国英语a
(one)
hundred
billion)
英国英语的billion=1
000
000
000
000，即10的12次方，等于美国英语的trillion。现在英国也有人采用美国用法，故英国计量局认为最好避免使用billion，trillion(美制10的12次方，英制10的15次方)和quadrillion((美制10的15次方，英制10的18次方)。

Answer 2

twenty 二十

thirty 三十

forty 四十

fifty 五十
sixty 六十
seventy 七十
eighty 八十
ninety 九十

Answer 3

Twenty，fifteenFivesixteenSixteen, eighteen, nineteen

Answer 4

写的非常棒我都，被老师表扬了