刚看了那些要求，觉得很麻烦啊，有些地方不太清楚，第一 Students must submit an official letter from the Registrar (on school letterhead)这是什么意思？应该找什么人开？写什么内容啊？ 第二 Both applicants will need to obtain a letter (on school letterhead) from a nominating university official that
includes the following:**********    这个又是什么意思？要找什么人开啊？  谢谢过来人