The family rolled out the welcome mat for the new exchange student.这个家庭热情接待了新来的交换生。I first came to France as an exchange student.我第一次去法国的时候是以交换生身份去的。Are you going on the French exchange this year?你要参加今年的法国交换生项目吗？I first came to America as an exchange student.我最初是以交换生的身份来美国的。