We want to clear zero here, but foreign countries treat that disease as a cold. Our side is cleared, foreign people are coming again, there are imported cases, and we have to carry out a zero clearance activity, which is like the Greek myth of pushing a stone up a mountain, pushing a stone up a mountain, and rolling down the mountain, and you have to continue to push the stone, which is always a circular activity. Another example is that you have to clean the willows in the house, so you open the window, and the willows keep coming in from the window, and you have to keep cleaning the willows every day, and you can't finish cleaning them when the time comes. A solution must be found, otherwise business cannot withstand such a toss. What has tourism become in recent years? Many small hotels and homestays could not be supported and went out of business.