Teacher's are very absorbed in their subjects.They all have a wide knowledge of their subjects.Through many years hard working,they get excellent.When students have varity questions,they can help with us.For example , if you have difficulty in understanding your english grammer,your English teacher would give you useful advise.However if you ask your math teacher ,you wouldl't get great answer.
很抱歉的是 我不太能很明确的理解这个题目,我只得根据我的理解来写.也许有偏差的地方,您多包涵.
我想出来也不容易,不如您采纳下
呵呵
有什么意见也可以提哦
祝学习进步啦~