what you have learned about a subject 这句话怎么理解 为什么加上have lear

what you have learned about a subject 这句话怎么理解 为什么加上have lear I have learned a lot _ .what about you? what have you learned about the figurative use in english What have you learned about yourself翻译过来是什么意思? Write down what you have learned about our shcool Talk about what you have learned from this management course 英语翻译What you have learned from this term,writing the subject what subject do you have? I have learned a lot --------.How about you? What do you know about Maxim de Winter?what have we learned they have learned a lot about themselves have you provided me with that sunset?为什么要加上一个with?这句话怎么翻译?