一到十九的英语单词怎么说
一到三十的序数词
1st=first
2nd=second
3rd=third
4th=fourth
5th=fifth
6th=sixth
7th=seventh
8th=eighth
9th=ninth
10th=tenth
11th=eleventh
12th=twelfth
13th=thirteenth
14th=fourteenth
15th=fifteenth
16th=sixteenth
17th=seventeenth
18th=eighteenth
19th=nineteenth
20th=twentieth
21st=twenty-firstu
22nd=twenty-second
23rd=twenty-third
24th=twenty-fourth
25th=twenty-fifth
26th=twenty-sixth
27th=twenty-seventh
28th=twenty-eighth
29th=twenty-ninth
30th=thirtieth
说明
1、许多序数词是由相应的基数词后加th构成的,如:four/fourth,six/sixth,ten/tenth,sixteen/sixteenth,但是nine变为序数词是ninth,而不是nineth。
2、twentieth,thirtieth,fortieth等表示整十的序数词,由相应的基数词将词尾y改为ie,再加th构成。
3、first,second,third通常可缩写为1st,2nd,3rd。凡是以th结尾的序数词可缩写为“基数词+th”:4th,5th,9th,11th,60th,128th等。
4、非整十的多位数,将个位数变成序数词即可:twenty-first(第21),thirty-sixth(第36),ninety-ninth(第99),threehundredandsixty-fifth(第365)等。
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