最佳答案：The Blue Sky Defense Three-year action plan is a pollution prevention and control action plan deploy
The Blue Sky Defense Three-year action plan is a pollution prevention and control action plan deployed by the Chinese government, which is designed to continue to improve the air quality and retain more blue sky for the masses. On June 27, 2018, the State Council issued a "winning blue sky to defend the three-year action plan"
. On February 25, 202, the Ministry of Ecological Environment held a routine news release, and announced the "Winning Blue Space Defense Three-Year Action Plan".
