The turntable of the dining table turns slowly in time. When having dinner at a party, you often meet a round table with a turntable. If there is a difference between the young and the old, a dish should be turned to the host, the guest of honor and the honorable person first, and then others will turn the turntable slowly after enjoying it. Moreover, the turntable should rotate clockwise, and it is forbidden to rotate quickly. This is a rule. If you are not required to go forward and backward, the turntable will not turn.