What is so attractive of this thing?
From what perspective did I regard it?
What did I think about it in the first place?
What did I realize after discovering what it really was?
What is the first part of this thing about?
Why was I attracted by it?
What difficulty did it present?
What is a proposed solution?
What was my approach?
What is my opinion about some internet friends' interpretation?
What is my interpretation?
What is the difference in connotation of the word 城堡 in English and in Chinese?
What is my opinion about the function of the quoted sentence in the paragraph?