吃透英语课本，提升在校竞争力
n. 保有；占有期；终身职位
It’s becoming increasingly difficult to acquire academic tenure .
获得终身教职现在越来越难了。
The company has doubled in value during his tenure.
在他的任期内，公司的市值翻了一番。
security of tenure
职位/地位的稳定性；[经]使用期保障
land tenure
土地占有制
tenure track
可授予终生职位的聘雇制度
life tenure
终身任期；终生职
tenure of office
任职期
n.任期；占有
occupation
having
