(People's Daily Online) 09:40, March 28, 2024 Aohan Banner in north China's Inner Mongolia Autonomous Region brought together over 500 Party members, staff members and volunteers to build grass grids for sand control in the Horqin Sandy Land on March 22, 2024.People build grass grids for sand control in the Horqin Sandy Land in Aohan Banner, north China's Inner Mongolia Autonomous Region on March 22, 2024. (vip.people.com.cn/Hao Jun)