What you find in the United States is an injury every 20 seconds -- that's one and a half million every year -- stroke every 40 seconds, Alzheimer's disease, every 70 seconds somebody succumbs to that.
在美国每20秒 就是发生一场受伤事件－每年150万次－ 每四十秒就有人中风 每70秒就有人患上老年痴呆症