Don't. "Xiaobing" is a large-scale children's character growth education column for teenagers, which is produced by Wuxi Xiaobing Culture Media Co., Ltd. According to the registration materials of the program, it is free to sign up to shoot the program, so it is free. This column well combines the three elements of "liberating nature, labor education and exploring nature", so that "little soldiers" can walk out of the classroom and enjoy the mountains.