英文翻譯．求英文達人幫幫忙．．

Question

Although much of this book is devoted to examining what principals can do to improve teacher retention in their schools, the main focus has been on retaining the best teachers in the schools.Though a mass exodus of teachers from any school building can have a harmful effect,it is the great teachers whose departure can really hurt a school.
Unfortunately,the existing literature on teacher retention and attrition issuesfails to differentiate among great teachers,mediocre teachers,and really poor teachers.
Nevertheless,it is improtant for all principals to examine this literature so that they can get a national perception of this issue.

Answer 1

　　雖管這本書的大部分內容著重於研究校長該如何做才能加強教師留任的意願，然而主要的重點則是在如何留住那些最優秀的教師。大量教師的流失對學校而言無異是有害的，但那些優秀教師的出走才是致命之傷。可惜的是，現存有關教師留任與撤職的文獻無法對優良教師、一般老師、劣質老師做出明確的分野。
　　儘管如此，對所有的校長而言，參考這方面的文獻仍是很重要的，因為它們對這個議題提供了一個全國性的觀點。