tenure
n[U]
1 holding of (eg political) office or land or other property, etc (职位, 如政治地位, 土地或其他资产等的)保有.
2 period or manner of this (上述事物的)保有期, 保有状况, 保有权, 保有条件
The tenure of the US Presidency is four years.美国总统的任期是四年.
freehold/leasehold tenure 无限期完全保有的[租赁保有的]状况
security of tenure, ie the right to remain as a tenant 承租人使用权的保障.
3 (esp US) permanent appointment as a teacher, etc in a university or some other institution (大学或其他机构中教师等的)长期聘用
granted tenure after six years 六年之後受长期聘用.
Though my aunt pursued what was, in those days, an enlightened policy, in that she never allowed her domestic staff to work more than eight hours a day, she was extremely difficult to please.