第1 first 1st ãã第2 second 2nd ãã第3 third 3rd ãã第4 fourth 4th ãã第5 fifth 5th ãã第6 sixth 6th ãã第7 seventh 7th ãã第8 eighth 8th ãã第9 ninth 9th ãã第10 tenth 10th ãã第11 eleventh 11th ãã第12 twelfth 12th ãã第13 thirteenth 13th ãã第14 fourteenth 14th ãã第15 fifteenth 15th ãã第16 sixteenth 16th ãã第17 seventeenth 17th ãã第18 eighteenth 18th ãã第19 nineteenth 19th ãã第20 twentieth 20th ãã第21 twenty-first 21st ãã第22 twenty-second 22nd 第23 twenty-third 23rd 第24 twenty-fourth 24th 第25 twenty-fifth 25th 第26 twenty-sixth 26th 第27 twenty-seventh 27th 第28 twenty-eighth 28th 第29 twenty-ninth 29th 第30 thirtieth 30th
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