I Live Broadcast the Time Travel in the Manhole

When I got to the bottom of the manhole, I almost missed the mark - there was a round iron door covered with red rust embedded in the wall of the manhole. Tai Chi Bagua is engraved on the door, and if you look closely, there are also landscapes, insects and fish. Lao Lin pressed down on the Bagua diagram and pressed hard, and the pattern instantly bulged out and turned into a turntable! As he stirred around, there was a 'click' sound, and the door opened...