任期的英文：
tenure
tenure of office
term of office

参考例句：

The Constitution limits the President's term of office to four years.
宪法规定总统的任期四年。

The office or term of office of a pontiff.
教皇的职位或任期

six years of senatorial incumbency
六年的参议员任期

His term of office as President will expire next year.
他的总统任期明年届满。

The lectureship is tenable for a period of three years.
讲师这一职位任期三年.

President Putin just won his fourth term of office in the election.
普京总理刚刚获得了第四次的任期。

The Vice President serves the same four-year term as the President.
副总统象总统一样任期四年。

The government,office,or term of a protector.
摄政政体摄政王的政府、职务或任期

Originally edicts were limited to the issuing magistrate's year of office.
最初敕令仅在发布敕令的长官任期内有效。

His term of office has run out
任期已满

tenure是什么意思：
n. 占有；占有权；占有期；任期；终身职位

d reform and tenure
土地改革与土地占有

Land Tenure Act
土地占有制法

He has recently been refused tenure.
他最近被拒绝授予终身职位。

office是什么意思：
n. 办公室；政府机关；公署，部；所，局；营业处；官职，职务

despatch office
发送室

The office micro interface with the mainframe in the head office.
办公室的微机与总部的中央处理器相互联结。

He was removed from office.
他被免职了。

term是什么意思：
n. 期，期限；学期；任期；条款；项；条；术语
v. 把…称为，把…叫做

It is a contradiction in terms.
这在措词上是自相矛盾的。

Hip is short term and earnest is long term.
时髦是短暂的，真诚是长远的。

extreme term of proportion
比例外项