A knock on the door outside the dormitory startled He Sai. She poked her head in and, with a worried look, asked: "Are you really okay staying alone at school If it's too difficult, you can stay at my place. I'll talk to my mom, and we can even wait for the public exam together. You've been waiting for so long, haven't you",Let me know if you have any other text you'd like me to translate!,Moreover, this technology can effectively treat human mental illnesses and is very helpful for brain development. In a sense, it is the key to evolution.。