Four Seas
four bodies of water that metaphorically made up the boundaries of ancient China: Qinghai Lake (west), East China Sea (east), Lake Baikal (north) and South China Sea (south)
en-GB/ˈfɔː ˈsiːz/
en-US/ˈfɔɹ ˈsiz/
four bodies of water that metaphorically made up the boundaries of ancient China: Qinghai Lake (west), East China Sea (east), Lake Baikal (north) and South China Sea (south)