一到三十的序数词（英语）

1 first
2 second
3 third
4 fourth
5 fifth
6 sixth
7 seventh
8 eighth
9 ninth
10 tenth
11 eleventh
12 twelfth
.
.
.
.
如此类推
20 twentieth
21 twenty-first
22 twenty-second
23 twenty-third
24 twenty-fourth
30 thirtieth

first second third fourth fifth sixth seventh eighth nineth tenth eleventh twelveth 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-nineth thirtieth

first
second
third
fourth
fifth
sixth
seventh
eighth
ninth
tenth
eleventh
twelfth
thirteenth
fourteenth
sixteenth
seventeenth
eighteenth
nineteenth
twentieth
twenty first
如此类推
……
thirtieth