【導讀】本文就數(shù)詞的用法作一歸納,供大家在復習中參考。thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,表示“幾使幾”用整十加個位數(shù)構(gòu)成,中間用連字符“-”。twenty-one,thirty-two,forty-three,fifty-four,niy-six. thousand,million,billion構(gòu)成。“hundreds”,“thousands”,“millions”,“billions”加“of”構(gòu)。first,second,third,fourth,fifth,ninth,eleventh,twelfth. 其余的整數(shù)加個位數(shù)構(gòu)成的詞,只變個位數(shù)為序數(shù)詞即可。twenty-nine→twenty-ninth,forty-five→forty-fifth,fifty-six→。碼時,首字母都大寫。5+7→fiveplusseven,9-3→nineminusthree,8×9→eight. ofsixtofive,42→foursquared,33→three-cubed,54→thefourth