When you get out of the exit, go to Hushilou on the right, about 200 meters, and take bus No.338 to get off at Forestry University. After getting off (with your back to Hexing Road), go to the overpass on the right. It's about two minutes' walk, but it's not a road. See a stone lion at the school gate, go in. Right in front of the main building, take the road on the right, and walk to the school motto stone of "learning towering place, combining virtue with nature", turn left, go straight, and walk for about 5 minutes. When you see a square, turn right and face the building in the middle. Or ask someone else when you get off the bus. What about Teacher Er?