答案如下:twenty二十,twenty-one二十一,twenty-two二十二,twenty-three二十三, twenty-four二十四,twenty-five二十五,twenty-six二十六,twenty-seven二十七,twenty-eight二十八,twenty-nine二十九;thirty三十,thirty-one三十一,thirty-two三十二...;forty四十,forty-one四十一,forty-two四十二...;fifty五十,fifty-one五十一,fifty-two五十二...;sixty六十,sixty-one六十一,sixty-two六十二...;seventy...
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