presidency

The country's economy experienced a major period of growth during his four-year presidency.

(Chinese) 在他四年的总统任期内，国家经济经历了一个重要的增长期。

Abraham Lincoln's presidency was defined by the challenges of the American Civil War.

(Chinese) 亚伯拉罕·林肯的总统任期被美国内战的挑战所定义。