音标:[hæ'nɔi] ;
n. 河内(越南首都)

Renee Montagne: Hundreds of thousands of Americans have back surgery every year at a much higher rate than any other country. Whether there are too many back surgeries is a hotly debated subject in orthopedist , NPR's Joanne Silberner examines the q

发表于:2019-01-08 / 阅读(146) / 评论(0) 分类 2006年NPR美国国家公共电台