这个中国老师一开始打广告，说夏天有RA职位，后来我面试之后等了几天，他又
给我这个答复：说夏天因为管理的原因这个职位没开成，等到秋季才有。我现在是他候
选人的首选，希望我到时候再申请。这个可能是什么原因？
Thanks again for your interest in this position. You are at the top of my
candidate list. Unfortunately I have to postpone this opening to the fall
because an administrative issue I can't resolve now. I hope you consider to
apply the position when it is available.
