第三十 ：30th thirtieth
规律总结：
1、就是twenty-first ，后面到29以此类推31为thirty-first ，直到39以此类推41为 forty-first ，后面同上50为fiftieth；第1、2、3是例外 。
2、第四以后都是数字加th，比如4th,5th，但从20以后如果遇到个位数为1、2、3的还得按照1st、2nd和3rd来写，比如第32为32nd 。
希望可以帮到你！
7.1到30的序数词英文怎么写首先搞清楚基数词和序数词，
基数词，表示数量，1,2,3，表示多少个
序数词，表示顺序，第1，第2，第3，表示第几个
1-30的序数词，前3个是特殊情况，需要单独记忆，从4开始往后，基本上都是在基数词的词根后面加th，但是词根变化较多，尤其结尾部分，要注意 。
还有，所有序数词之前，都要加the 。
1-10,first, second, third,fourth,fifth,sixth,seventh,eighth,ninth,tenth
11-20,eleventh,twelfth,thirteenth,fourteenth,fifteenth,sixteenth,seventeenth,eighteenth,nineteenth,twentieth
21-30,twenty first, twenty second,twenty third,twenty-fourth,twenty-fifth,twenth-sixth, twenty-seventh,twenty-eighth,twenty-ninth,thirtieth
8.谁知道英语从 第1到第30怎么写first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth thirteenth fourteenth fifteenth sixteenth seventeenth eighteenth nineteenth twentieth twenty-first twenty-second twenty-third twenty-fourth
twenty- fifth twenty-sixth twenty- seventh twenty-eighth twenty- ninth thirtieth 好啦，这些就是第一到第三十的英文啦，别忘了给我加分哦！
9.1至30用英语怎么写不知你是想知道1至30分别用英语怎么写：one, two, three, four, five, six, seven, eight, nine, ten
eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, ninteen,twenty
twenty-one, twenty-two, twenty-three, twenty-four, twenty-five, twenty-six, twenty-seven,twenty-eight,twenty-nine, thirty.
还是就是1至30的翻译：from 1 to 30
10.1到30的英语怎么写1 one
2 two
3 three
4 four
5 five
6 six
7 seven
8 eight
9 nine
10 ten
11 eleven
12 twelve
13 thirteen
14 fourteen
15 fifteen
16 sixteen
17 seventeen
18 eighteen
19 nineteen
20 twenty
21 twenty-one
22 twenty-two
23 twenty-three
24 twenty-four
25 twenty-five
26 twenty-six
27 twenty-seven
28 twenty-eight
29 twenty-nine
30 thirty
【第1第30英语怎么写】
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