50-fifty31等等的就像21,22那样的在后面加上-数字就行了

1one2two3three4four5five6six7seven8eight9nine10ten11eleven12twelve13thirteen14fourteen15fifteen16sixteen17seventeen18eighteen19ninteen20twenty21-29twenty-one---twen...

1one2two3three4four5five6six7seven8eight9nine10ten11eleven12twelve13thirteen14fourteen15fifteen16sixteen17seventeen...

1one2two3three4four5five6six7seven8eight9nine10ten11eleven12twelve13thirteen14fourteen15fifteen16sixteen17seventeen18eighteen19nineteen20twenty21twenty-one...

41~50：forty-one、forty-two、forty-three、forty-four、forty-fiveforty-six、forty-seven、forty-eight、forty-nine、fifty51~60：fifty-one、fifty-two、fifty-three、fifty-four、fifty-five、fifty-six、fifty-seven...

从21到50的英语单词21twenty-one22twenty-two23twenty-three24twenty-four25twenty-five26twenty-six27twenty-seven28twenty-eight29twenty-nine30thirty31thirty-one32thirty-two33...

onetofifty

50(fifty)51

50fifty序数词：第1first第2second第3third第4fourth第5fifth第6sixth第7seventh第8eighth第9ninth第10tenth第11eleventh第12twelfth第13thirteenth第14fourteenth第15fifteenth...

37thirty-seven38thirty-eight39thirty-nine40forty41forty-one42forty-two43forty-three44forty-four45forty-five46forty-six47forty-seven48forty-eight49forty-nine50fifty...