求翻譯：His method of teaching is very good. He has mastery over many subjects. He makes the lessons very interesting. He is not satisfied unless every student in his class understands the lesson. He has a kind word for each in the class. He encourages the boys to talk in English. He works very hard himself. He knows to take w是什么意思？

待解決 懸賞分：1 - 離問(wèn)題結(jié)束還有