留美老师带你每日说英文 第467期:医疗旅游是什么?

台湾籍旅美老师今天交给我们的句子是：

Additionally, transplant tourism has become a highly controversial issue. Medical tourists can obtain organs and transplant operations without waiting in a long line, for less money. But the World Health Organization says that the organs often come from vulnerable people.
另外，器官移植旅游已经变成了高度争议的问题。医疗旅游者可以不用排队，更快拿到器官并接受手术，甚至花更少的钱。但是世界健康组织声明那些器官可能来自老弱妇孺。