댐🌊

#holding back #restrain #control volume #dam #flood control #barrier #stopping force

🌊⛏️👑治水

#dayu #da yu #dayu the great #flood control #xia dynasty #chinese mythology #emperor yu #yu the great #water management #治水

⏳💰

#sand #bag #sack #weight #ballast #flood control #fortification

🧱💧💧💧

#reservoir #holding water #brick barrier #water storage #flood control