Can students call students?

Students can't call students, only students. Shen Xin is an overlapping adjective meaning "numerous", which was widely used in ancient Chinese. For example, Guoyu quoted Zhou Shi as saying that "I am eager to recruit a husband and am invincible." In the written language of modern Chinese, it is only used to describe students and has become a title of "many students". Therefore, Angel's meaning is completely wrong, and there is no such word.