letter of reference的用法和樣例：
例句
用作名詞 (n.)
- She balled the letter into a wad.
她將信揉成一團。 - We have had no acknowledgement of our letter.
我們沒(méi)有收到過(guò)確認去信已收到的回音。 - Each recommendation must include the completed Reference Form as well as a separate letter from your recommender written and signed on academic or business letterhead stationery.
要什么樣的信頭，是申請學(xué)校的還是推薦人所在學(xué)校，還是其它的？
