五十的英语是fifty 英 [ˈfɪftɪ] 美 [ˈfɪfti] n. 五十。例句：A golden wedding is the fiftieth anniversary of a marriage. He was minus fifty dollars.
A golden wedding is the fiftieth anniversary of a marriage.
He was minus fifty dollars.
He is able to lay aside fifty pounds each week.
Julius Caesar subdued Gaul in 50 B.C.
Rural industries have absorbed 50 per cent of the surplus work force.
The World Cup final is being transmitted live to over fifty countries
A fifty cent postage stamp was put on the heavy letter.
He’s in his mid-fifties;well,fifty-six to be exact(ie more accurately).
The number was fifty.
The building has fifty stories.
She was born in the fifties.
The total amount is in the fifties.
He is in the vicinity of fifty.
Enclosed is an order for fifty pounds.
I should suppose him to be about fifty.
Their expenses amount to fifty dollars.
We have come fifty miles since lunch.
By that time she was attaining to fifty.