The word "inquiry (or enquiry)" comes from the Latin words "in", or "inward", and "quaere", which is the verb "to question". So inquiry is not just asking questions, it is questioning into something. It has the quality of getting into something, going deeper, so you can see what you haven't been able to see before.
When you begin an inquiry, you are deliberately setting out to search for what you don't know. You have to have the confidence to say that you might be able to figure it out for yourself. And in that process, you get a sense of real excitement and energy. That energy is both part of, and contributes to, what we often call "engagement(参与)". But in order to use inquiry to answer your question, you have to become good at knowing what you don't know. I would argue that that's exactly the opposite of what happens in schools. Classrooms focus on what you do know (or are supposed to know) and leave you unprepared to deal with the things you don't know.
In some way, we are all surrounded by a bubble(气泡) of the known. When you "know" something, you identify how your model of the world fits with and explains what you see. Living in the bubble of the known is comfortable and comforting. You see what you know, and you know what you see. But to do inquiry, you have to get good at always looking for the boundaries of your knowledge, and at the limitations and contradictions within what is known. That is what scientists do. They are always looking for the limits, the boundaries and the points at which their theories fail to explain the world. Scientists, basically, are always looking for that "door" from the known to the unknown, where they can press forth and push and, in a sense, expand the bubble of the known. Inquiry is the action you take when you deliberately challenge the limits of your knowledge.
