1-31的序数词的缩写答:1-31的序数词的缩写如下:1-10:1st , 2nd , 3rd , 4th , 5th , 6th, 7th , 8th ,9th ,10th,11-20:11th,12th,13th,14th,15th,16th,17th,18th,19th,20th,21-31:21st , 22nd , 23rd , 24th , 25th , 26th, 27th , 28th ,29th ,30th,31st 1-100序数词的变化规律...
英语基数词变序数词的规则答:基数词和序数词的变化规则口诀 变化口诀1: 一、二、三,单独记;八去t,九除e,ve要用f替,整十基数变序数,先把ty变成tie;要是遇到两位数,十位基数个位序,th最后加上去。 变化口诀2: 基变序,容易记,加上th就可以; 一二三,特殊记,词尾字母tdd; 八减t,九减e,f来把ve替; 若是遇到整十数,ty变作tie; ...