You think you're really hard, don't you?
你是不是以为自己真的很勇猛？
Well, really! What a thing to say!
啊，真是的！这么说太不像话了！
I don't really need to go, do I?
我并不一定非要去，对吧？
He's really very human when you get to know him.
你若了解他，就知道他确实很有人情味。
In my experience, very few people really understand the problem.
据我的经验看，真正理解这个问题的人很少。