这句英语怎么理解Withinacademicdepartments,tenure(终身职位),combinedwithage-discriminationlaws,makesfacultyturnovercriticalforauniversitytoremaincurrentinchangingtimes—difficult.这句话怎么理解,中间的扩折

Question

这句英语怎么理解
Within academic departments, tenure(终身职位),combined with age-discrimination laws, makes faculty turnover critical for a university to remain current in changing times—difficult. 这句话怎么理解,中间的扩折号只是表释义吗?主谓宾是哪些?

Answer 1

在大学各系中,终身制,加上反年龄歧视法律的存在,使得教职员的流进流出,十分艰难.而随之时代的变迁而保持人员的流动,对于一所大学而言是至关重要的.
主语：tenure
谓语：makes
宾语：faculty turnover
宾语的定语：critical for a university to remain current in changing times
宾补：difficult