We bought a new computer, I saw a computer display with a label, the father asked the above write those for what, dad told me that it is the description of adapter label, adapter label to tell us what should be paid attention to when in use, the data and parameters, then I also compare small, grow up now also sensible, own some things can completely understand, don’t need to ask Mom and Dad, suddenly felt a lot of things we need to learn in life, we can not be confined to the books of knowledge, in peacetime we should be good at discovering, good at learning, you can learn a lot from books. Not knowledge.