绿色拇指跳
first second third fourthfifth sixth seventh eighth ninth tenth eleventh twelfth
飞扬嗒兜兜
第一次：first,缩写：1st；第二次：second,2nd；第三次：third,3rd；第四次：forth,4th;第五次：fifth,5th；第六次：sixth,6th;第七次：seventh,7th;第八次：eighth,8th;第九次：nineth,9th；第十次：tenth,10th；第十一次：eleventh,11th;第十二次：twelveth,12th;第二十一次：twenty-first,21st。以此类推。
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