申请课程豁免
课程豁免通常只会因为几个正当理由被批准：这门课是学位必修、你已用同等课程满足了先修要求、或者这是唯一排得进课表的班次。把这句理由放在开头，其余从简。
Subject: Override request for [Course name / number]
Dear [Professor / Registrar],
I'm writing to request an override for [Course name / number] because [specific reason — e.g. it's required for my major / it's the only section that fits my schedule].
[If relevant: I've already completed the prerequisite through [equivalent course or experience], which covers [the required material].]
My student ID is [ID]. I've attached [transcript / other supporting document] if that helps. Thank you for considering my request.
Best,
[Your name]
这封邮件在做什么：
· 理由放在第一句，别埋起来。读的人应该在第一行就知道这为什么是个正当请求。
· 带上学号，替对方省一步，也显得你办事有条理。
· 如果是拿同等课程抵先修要求，把证明材料附上——这类理由不附证据，通常不会被采信。
豁免的决定通常出得很快。几天没回复可以简短跟进一次，尤其当选课名额正在被抢的时候。