书呆子fi
book fair───书展,书籍义卖
books off───下班考勤登记
book in───登记;预定
book off───下班考勤登记
book up───预订(票、车位、舱位等);全部预定完
books in───登记;预定
books up───预订(票、车位、舱位等);全部预定完