a. devoid of good sense or judgment
a. 愚蠢的, 傻的
1. It was foolish of him to ignore the warning signs.
忽视警告信号对他来说是愚蠢的。
2. She made a foolish mistake by not studying for the exam.
她没有为考试复习而犯了一个愚蠢的错误。
3. Sometimes, we act foolishly when we are under pressure.
有时候，当我们处于压力之下时，会做出愚蠢的举动。