Five years later the low wall around the city had been completed, and artillery placements were added to all four gates (north, south, east, and west) to ward off attacks from indigenous peoples or foreign military units. The internal and external walls were each twenty feet thick, and there was a moat around the outside. Such was China's southernmost county seat.
五年後，城垣建成，為防土著及外國軍事侵擾，東西南北城門上均置有砲台，內外城牆各厚達兩丈，外有護城河，成為中國最南端的縣城。