In this task, given a sentence in the English language, your task is to convert it into the Chinese language.

US president Barack Obama declared a swine flu emergency in the country on Saturday, according to a statement released by the White House.
根据白宫发布的一项声明，星期六，美国总统巴拉克·奥巴马宣布全国进入猪流感紧急状态。