This is the VOA Special English Health Report.
这 里是美国之音慢速英语健康报道。
President Obama has signed legislation to make the biggest changes in the health care system in forty-five years.
奥巴 马总统已经签署法律,对医保体系进行45年来最大的改革。
BARACK OBAMA: “Today, after almost a century of trying; …