It's just what I had in mind.
这正是我想要的.
This is not what I meant.
这不是我想要的.
I'm quite satisfied with it.
我很满意.
I can't complain.
无可抱怨.
I don't like this, I'm afraid.
恐怕我不喜欢这样.
I'm not really satisfied with the students' performance.
我对学生的表现不太满意.
I really expected it to be a lot funnier.
我原以为会有趣得多.