31的英文英文

31的英语怎么写31th31thirty-one2，二十一到三十一的英文请速告知twenty-one,twenty-two,twenty-three,twenty-four,twenty-five,twenty-six,twenty-seven,twenty-eight,twenty-nine,thirty,thirty-one3，请问21到31的英语单词是什么21.twenty-one22.twenty-two以此类推到thirty30thirty-one31就是序数词！first、second、t...