According to a report by the Macro Task Force of the Institute of Economics of the Chinese Academy of Sciences, from the historical practice of China's economic cycle floating, after the economic growth is less than double digits, the adjustment period is up to two years, and the economy will rebound rapidly, even like 1981, 1990 Such a serious situation is also picking up in two years. By comparison, the current decline in economic growth has been more than three years, and various indicators are still lower-it is pale and weak to explain with short-cycle fluctuations. What does the text above mean? ["The continuous fluctuation of the economic development process is an objective law of China's economic development.", "China's economy bids farewell to the double-digit growth period and enters a new adjustment cycle.", 'Through adjustment, a great form of rapid economic growth in China will definitely emerge.', "The decline period of China's GDP is too long and no reasonable explanation can be found."]