终身总统

例句：

1. 1. The president of the United States is currently in office.
   美国总统目前在职。
2. 2. He was appointed as the president of the company last year.
   他去年被任命为公司的总裁。
3. 3. The president has announced a new policy to improve the economy.
   总统已宣布一项新政策以促进经济增长。