总统任期四年。

The president occupies the position for four years.

《牛津词典》

随着美国进一步进入奥巴马的总统任期，参与政治的年轻人会继续支持总统和他的议程，还是他们会逐渐远离？

As the nation moves further into the Obama presidency, will politically engaged young people continue to support the president and his agenda, or will they gradually drift away?

youdao

总统的任期不得超过两届，每届四年。

The presidential mandate is limited to two terms of four years each.

《牛津词典》

That has to count as the toughest day, not only in my career, but also in the history of that particular presidency.

那可以算得上是最艰难的一天，不仅在我的职业生涯里，在总统任期的历史中,也是最艰难的一天吧。

普林斯顿公开课 - 国际座谈会课程节选

And we did a presentation on his foreign policy over his 12 year presidency.

我们展示了一下他在12年的总统任期之间的外交政策。

要做好角色分担 - SpeakingMax英语口语达人

Before becoming President Bush's White House Chief of Staff, he was President Bush's Director of the Office of Management and Budget for 3 years.

在成为布什总统的,白宫办公厅主任之前，他是布什总统的,白宫管理与预算办公室主任,任期三年。

普林斯顿公开课 - 国际座谈会课程节选