明天清华大学活动礼仪，需要礼仪12点30到/4.30左右，2/3小时的活，基本上秒定，有做的发摩卡和视频，费用200
Tomorrow Tsinghua University's activity etiquette, you need etiquette from 12:30 to/4.30, 2/3 hours of work, basically set in seconds.
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