you should return all books to the information desk and wait until your books have been comoletely checked in by the staff working at the counter.
问题描述：
you should return all books to the information desk and wait until your books have been comoletely checked in by the staff working at the counter.
答
你必须把所有的书都还给信息台,等到台前的工作人员把所有的书都登记以后才能走