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1-20ï¼firstãsecondãthirdãfourthãfifthãsixthãseventhãeighthãninthãtenthãeleventhãtwelfthãthirteenthãfourteenthãfifteenthãsixteenthãseventeenthãeighteenthãnineteenthãtwentieth
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1-20ï¼zeroãoneãtwoãthreeãfourãfiveãsixãsevenãeightãnineãtenãelevenãtwelveãthirteenãfourteenãfifteenãsixteenãseventeenãeighteenãnineteenãtwenty
下面是序数词
1-20:first、second、third、fourth、fifth、sixth、seventh、eighth、ninth、tenth、eleventh、twelfth、thirteenth、fourteenth、fifteenth、sixteenth、seventeenth、eighteenth、nineteenth、twentieth
下面是基数词
1-20:zero、one、two、three、four、five、six、seven、eight、nine、ten、eleven、twelve、thirteen、fourteen、fifteen、sixteen、seventeen、eighteen、nineteen、twenty