1.她发表那样的演说是一种愚蠢的行为
It's so silly of her to make that kind of speech.
2.我们不应该花时间来炫耀
We should not spend time (in) showing off.
3.你不应该过分关注细节
You should not focus on details too much.
4.你能原谅我的过错真是太好了.
It is great for you to have forgiven me.
5.我们都喜欢和他交朋友,因为他能保守秘密
We all like to make friends with him,because he can keep secret.