Before the trip, online teaching was difficult to access the West Gate, decisively entering from the South Gate, and as expected, it was unimpeded. Bypass the main entrance and office building, teach one. Turning to Tsinghua Road, the Ginkgo biloba is brilliant in front of the second school gate. Desser went out from the West Gate. A group of people wanted to visit the school with the security guard. However, the security guard pointed solemnly to the side of the regulations - "School is a place of study and work, not a tourist attraction, and refused to visit.". My heart is bright - "Why don't you ask me when you go out to prepare for class? But you keep a low profile and leave in a hurry while you are having fun secretly.