Before graduating from university in 2023, Lin Xing had experienced this kind of time travel three times. Judging from these limited three experiences, he believed that the length of time he traveled back to the past should be related to the size of the danger.,After half a minute, Lin Xing panted and ran into the classroom. She let out a sigh of relief, then laughed: "It's okay, it's okay, I almost missed class.",The middle-aged man, known as Wei's team, angrily shouted: "What are you doing! Didn't you say you were going to evacuate the school How did this person get in"。