foolish的副词形式

foolishly adv. 愚笨地；无聊地；可笑地；

例句

It is not at all likely that he will act so foolishly as that.

他决不会那样愚蠢地行事。

He admitted that he had acted foolishly.

他承认自己做得很愚蠢。

If you act foolishly, people there might think that all of your countrymen are foolish as well.

如果你做傻事，那里的人可能认为你所有的同胞都很愚蠢。

Strong man though he was, there is no doubt that he had behaved rather foolishly over the medicine.

虽然他是个坚强的人，但毫无疑问，他在服药方面表现不佳。

I foolishly forgot my passport.

我很笨，忘记带我的护照了。