回答:thirteen 13
fourteen 14
fifteen 15
sixteen 16
seventeen 17
eighteen 18
nineteen 19
twenty 20
13 thirteen 14 fourteen 15 fifteen 16 sixteen 17 seventeen 18 eighteen 19 nineteen 20 twenty
thirteen13
fourteen14
fifteen15
sixteen16
seventeen17
eighteen18
nineteen19
twenty 20
thirteen
forteen
fifteen
xisteen
seventeen
eighteen
nineteen
twlety