fourty是forty的错误写法，fourty只能做人名富尔蒂出现，无实际意义。

forty

n.四十;四十几

复数： forties

派生词： fortieth ordinal number n.

Forty per cent of children under five in developing countries are short for their age because of undernourishment.

在发展中国家，5岁以下的孩子中有40%因为营养不良而身高偏低。

I had to pay nigh on forty pounds for it.

我不得不为它花了将近40英镑。