August 20th to August 3rd1. According to the official WeChat account of Dong Bo Experimental School. As of August 4, 2023, the military training time of the first day of 2023 in Dong Bo Experimental School has not been announced, and the military training time of the first day of 2022 in Dong Bo Experimental School is from August 20 to August 3 1. Dong Bo Experimental School is a nine-year boarding school invested by Huizhou Huake Education Group and assisted by the Municipal Commission for Discipline Inspection and the county and town governments.