silliness

例句：

1. 1. She was so silly for not realizing the danger.
   她因为没意识到危险而太愚蠢了。
2. 2. The child's behavior was completely illogical and quite silly.
   那个孩子的行为完全不合逻辑，非常愚蠢。
3. 3. He had a terrible sense of humor and often made people laugh at his silly jokes.
   他的幽默感很差，经常用他那些愚蠢的笑话让人发笑。