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1、什么是数词？ 表示数目多少或顺序的词叫数词，数词分为基数词和序数词，表示数目多少的词叫 ，表示顺序的词叫 。基数词序数词zeroonetwothreefourfivesixseveneightnineten+ teen =elevenfourteenfifteentwelvethirteeneighteennineteensixteentwentyseventeen+ teen =+ teen =+ teen =LetsLetscountcountfrom from 1 1toto2020twenty-onetwenty-twotwenty-threeLearn the numbers 21-
2、29.twenty-fourtwenty-fivetwenty-eighttwenty-seventwenty-sixtwenty-nine30 thirty40 forty90 ninetytwenty2050607080fiftysixtyseventyeightytytytytytytytytyLearn the numbers 30-90thirteenfourteenfifteensixteenseventeeneighteennineteenfortyfiftytwentythirtyeightyninetysixtyseventy100 one hundred101 one hundred and one115 one hundred and fifteen569 five hundred and sixty-nineandandand0至12逐个记，13至19teen结尾20至90整十数，ty结尾是后缀几十几，挺容易；先说几十，再说几，中间“-”加上去若要表示几百几，hundred之后and立
