本期内容：

Arnold Schwarzenegger has undergone heart surgery in Los Angeles. The Austrian-American film star and former California governor, 70, had a scheduled procedure to replace a valve at Cedars-Sinai hospital on Thursday. The device was installed to repair a defective aortic valve in 1997. Thursday's operation lasted several hours. Schwarzenegger is said to be recovering well and reportedly commented after waking from surgery: "I'm back.”

undergo: 经历
scheduled：既定的
valve：瓣膜
defective：有缺陷的
aortic：主动脉

想了解更多信息，请关注:
新浪微博：教书匠小夏
微信公众号：教书匠小夏