……你确定你真的不知道么?…………简写:1st, 2nd, 3rd, 4th, 5th, 6th …… 10th, 11th, 12th ,13th, 14th, …… 20th, 21st, 22nd, 23rd, 24th, 25th,…… 30th, 31st全写:first, second, third, forth, fifth, sixth, seventh, eighth, nineth, tenth, eleventh, twelfth, thirteenth, fourteenth, ……twentieth, twenty-first, twenty-second, twenty-third, twenty-forth, twenty-fifth, ……thirtieth, thirty-first以上就是从1到31日的英语写法读法就是:月日,年如 2011.7.20写法: Jul. 20th, 2011就读 July (the) twentieth, two thousand and eleven.