英语序数词1到20单词

first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth thireenth fourteenth fifteenth sixteenth seventeenth eighteenth nineteenth twentith

第十二是:twelfth

First second third forth fifth sixth seventh eighth ninth tenth eleventh twelfth fifteenth sixteenth, seventeenth eighteenth, .nineteenth twentieth

first second. third

first second third fourth fifth sisth seventh eighth ninth tenth eleventh twelfth thirteenth fourteenth fifteenth sisteenth seventeen eighteenth nineteenth twentieth