his four-year tenure as President是什么意思？

his four-year tenure as President

他的四年总统任期

his

pron. (he的所有格)他的，(he的物主代词)他的东西；det. 属于他的，用于名词前，自己的，指某人的，上帝的；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

tenure

n. 占有（职位，不动产等），占有期，终身职位；

例句
Lack of security of tenure was a reason for many families becoming homeless.
居住权得不到保证是许多家庭居无定所的一个原因。

as

adv. 同样地，一样地，例如；prep. 作为，以…的身份，如

例句
As far as I can recall, Patti was a Smith.
我记得帕蒂是姓史密斯的。

president

n. 校长，总统，总裁，董事长；

例句
The President described the killings as an abominable crime...
总统称这些血案为令人发指的罪行。