Zhonggong Xue Hui can't just use it once. Zhonggong Xue Hui is a paid learning method after class, and there is no specified number of times of use, so Zhonggong Xue Hui can't use it only once. Zhonggong Xue Hui is a student aid project launched by Zhonggong Education, which provides delayed payment service for candidates who are interested in participating in educational counseling and training.