This was Susan herself, occupied in preparing a posset for her little boy, who, often ailing, was now seriously unwell.

这个女人就是苏珊·纳萨奇，她正忙着给她那个小备牛甜，这个子经常生病，现在病很重。

No one knows for sure exactly when eggnog was first invented, but most food historians believe it descended from a medieval English milky drink called posset.

没有人确切地知道是什么时候发明的，但大多数食品历史学家认为它是中世纪英国一种叫做牛甜的乳白色饮料的衍生品。