1至50的基数词和序数词 1到50英语单词和序数词
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\u5e8f\u6570\u8bcd\uff1a
\u7b2c1 first
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\u7b2c25 twenty-fifth
\u7b2c26 twenty-sixth
\u7b2c27 twenty-seventh
\u7b2c28 twenty-eighth
\u7b2c29 twenty-ninth
\u7b2c30 thirtieth
\u7b2c31 thirty-first
\u7b2c32 thirty-second
\u7b2c33 thirty-third
\u7b2c34 thirty-fourth
\u7b2c35 thirty-fifth
\u7b2c36 thirty-sixth
\u7b2c37 thirty-seventh
\u7b2c38 thirty-eighth
\u7b2c39 thirty-ninth
\u7b2c40 fortieth
\u7b2c41 forty-first
\u7b2c42 forty-second
\u7b2c43 forty-third
\u7b2c44 forty-fourth
\u7b2c45 forty-fifth
\u7b2c46 forty-sixth
\u7b2c47 forty-seventh
\u7b2c48 forty-eighth
\u7b2c49 forty-ninth
\u7b2c50 fiftieth
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\u5e8f\u6570\u8bcd\uff1a
\u7b2c1 first
\u7b2c2 second
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\u7b2c20 twentieth
\u7b2c21 twenty-first
\u7b2c22 twenty-second
\u7b2c23 twenty-third
\u7b2c24 twenty-fourth
\u7b2c25 twenty-fifth
\u7b2c26 twenty-sixth
\u7b2c27 twenty-seventh
\u7b2c28 twenty-eighth
\u7b2c29 twenty-ninth
\u7b2c30 thirtieth
\u7b2c31 thirty-first
\u7b2c32 thirty-second
\u7b2c33 thirty-third
\u7b2c34 thirty-fourth
\u7b2c35 thirty-fifth
\u7b2c36 thirty-sixth
\u7b2c37 thirty-seventh
\u7b2c38 thirty-eighth
\u7b2c39 thirty-ninth
\u7b2c40 fortieth
\u7b2c41 forty-first
\u7b2c42 forty-second
\u7b2c43 forty-third
\u7b2c44 forty-fourth
\u7b2c45 forty-fifth
\u7b2c46 forty-sixth
\u7b2c47 forty-seventh
\u7b2c48 forty-eighth
\u7b2c49 forty-ninth
\u7b2c50 fiftieth
基数词：
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
31 thirty-one
32 thirty-two
33 thirty-three
34 thirty-four
35 thirty-five
36 thirty-six
37 thirty-seven
38 thirty-eight
39 thirty-nine
40 forty
41 forty-one
42 forty-two
43 forty-three
44 forty-four
45 forty-five
46 forty-six
47 forty-seven
48 forty-eight
49 forty-nine
50 fifty
序数词：
第1 first
第2 second
第3 third
第4 fourth
第5 fifth
第6 sixth
第7 seventh
第8 eighth
第9 ninth
第10 tenth
第11 eleventh
第12 twelfth
第13 thirteenth
第14 fourteenth
第15 fifteenth
第16 sixteenth
第17 seventeenth
第18 eighteenth
第19 nineteenth
第20 twentieth
第21 twenty-first
第22 twenty-second
第23 twenty-third
第24 twenty-fourth
第25 twenty-fifth
第26 twenty-sixth
第27 twenty-seventh
第28 twenty-eighth
第29 twenty-ninth
第30 thirtieth
第31 thirty-first
第32 thirty-second
第33 thirty-third
第34 thirty-fourth
第35 thirty-fifth
第36 thirty-sixth
第37 thirty-seventh
第38 thirty-eighth
第39 thirty-ninth
第40 fortieth
第41 forty-first
第42 forty-second
第43 forty-third
第44 forty-fourth
第45 forty-fifth
第46 forty-sixth
第47 forty-seventh
第48 forty-eighth
第49 forty-ninth
第50 fiftieth
基数解释：
根据对等这种关系对集合进行分类，凡是互相对等的集合就划入同一类。这样，每一个集合都被划入了某一类。任意一个集合A所属的类就称为集合A的基数，记作|A|（或cardA)。这样，当A 与B同属一个类时，A与B 就有相同的基数，即|A|=|B|。而当 A与B不同属一个类时，它们的基数也不同。
如果把单元素集的基数记作：
1、两个元素的集合的基数记作；
2、等等，则任一个有限集的基数就与通常意义下的自然数一致 。空集的基数也记作0。于是有限集的基数也就是传统概念下的“个数”。但是，对于无穷集，传统概念没有个数，而按基数概念，无穷集也有基数，例如，任一可数集（也称可列集）与自然数集N有相同的基数，即所有可数集是等基数集。不但如此，还可以证明实数集R与可数集的基数不同。所以集合的基数是个数概念的推广。
基数词：
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
31 thirty-one
32 thirty-two
33 thirty-three
34 thirty-four
35 thirty-five
36 thirty-six
37 thirty-seven
38 thirty-eight
39 thirty-nine
40 forty
41 forty-one
42 forty-two
43 forty-three
44 forty-four
45 forty-five
46 forty-six
47 forty-seven
48 forty-eight
49 forty-nine
50 fifty
序数词：
第1 first
第2 second
第3 third
第4 fourth
第5 fifth
第6 sixth
第7 seventh
第8 eighth
第9 ninth
第10 tenth
第11 eleventh
第12 twelfth
第13 thirteenth
第14 fourteenth
第15 fifteenth
第16 sixteenth
第17 seventeenth
第18 eighteenth
第19 nineteenth
第20 twentieth
第21 twenty-first
第22 twenty-second
第23 twenty-third
第24 twenty-fourth
第25 twenty-fifth
第26 twenty-sixth
第27 twenty-seventh
第28 twenty-eighth
第29 twenty-ninth
第30 thirtieth
第31 thirty-first
第32 thirty-second
第33 thirty-third
第34 thirty-fourth
第35 thirty-fifth
第36 thirty-sixth
第37 thirty-seventh
第38 thirty-eighth
第39 thirty-ninth
第40 fortieth
第41 forty-first
第42 forty-second
第43 forty-third
第44 forty-fourth
第45 forty-fifth
第46 forty-sixth
第47 forty-seventh
第48 forty-eighth
第49 forty-ninth
第50 fiftieth
轻松学会基数词序数词2
绛旓細锛1锛変粠绗竴鑷崇鍗佷節 鍏朵腑锛one鈥 first锛 two鈥 second锛 three鈥 third锛 five鈥 fifth锛宔ight鈥攅ighth锛宯ine鈥攏inth锛宼welve鈥 twelfth涓虹壒娈婂舰寮锛屽叾瀹冪殑搴忔暟璇嶉兘鏄敱鍏剁浉瀵瑰簲鐨勫熀鏁拌瘝鍚庨潰娣诲姞鈥渢h鈥濇瀯鎴愩備緥濡傦細 six鈥 sixth銆乶ineteen鈥 nineteenth锛庯紙2锛変粠绗簩鍗佽嚦绗節鍗佷節 鏁存暟绗嚑鍗佺殑褰㈠紡鐢...
绛旓細绗1 first 1st绗2 second 2nd绗3 third 3rd绗4 fourth 4th绗5 fifth 5th绗6 sixth 6th绗7 seventh 7th绗8 eighth 8th绗9 ninth 9th绗10 tenth 10th绗11 eleventh 11th绗12 twelfth 12th绗13 thirteenth 13th绗14 fourteenth 14th绗15 fifteenth 15th绗16 sixteenth 16th绗17 seventeenth 17th绗18 ...
绛旓細鍩烘暟璇嶏細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...
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绛旓細涓銆鍩烘暟璇 1-20锛歾ero銆乷ne銆乼wo銆乼hree銆乫our銆乫ive銆乻ix銆乻even銆乪ight銆乶ine銆乼en銆乪leven銆乼welve銆乼hirteen銆乫ourteen銆乫ifteen銆乻ixteen銆乻eventeen銆乪ighteen銆乶ineteen銆乼wenty 20锛歵wenty銆30锛歵hirty銆40锛歠orty銆50锛歠ifty銆60锛歴ixty銆70锛歴eventy銆80锛歟ighty 90锛歯inety 浜屻搴忔暟璇 1-20锛歠irst...
绛旓細50 fifty搴忔暟璇: 绗1 first 绗2 second 绗3 third 绗4 fourth 绗5 fifth 绗6 sixth 绗7 seventh 绗8 eighth 绗9 ninth 绗10 tenth 绗11 eleventh 绗12 twelfth 绗13 thirteenth 绗14 fourteenth 绗15 fifteenth 绗16 sixteenth 绗17 seventeenth 绗18 eighteenth 绗19 nineteenth 绗20 twentieth 绗21 ...
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绛旓細50 fifty 搴忔暟璇嶏細绗1 first 绗2 second 绗3 third 绗4 fourth 绗5 fifth 绗6 sixth 绗7 seventh 绗8 eighth 绗9 ninth 绗10 tenth 绗11 eleventh 绗12 twelfth 绗13 thirteenth 绗14 fourteenth 绗15 fifteenth 绗16 sixteenth 绗17 seventeenth 绗18 eighteenth 绗19 nineteenth 绗20 twentieth...
