curiosity不是可数名词而是不可数名词，由于curiosity是抽象名词为不可数名词，curiosity中文意思是n. 好奇心，求知欲珍品，奇事

We gratified our friend's curiosity.我们满足了朋友的好奇心。

He was seized by curiosity.他好奇心顿起。

I was bursting with curiosity.