回溯 Retrace 空间略呈方形，有城墙环绕，四面均设城门，城内纵横交错，布局有如棋盘，此为庞贝。因维苏威而毁灭，因毁灭而得到永恒。 The space is slightly square, surrounded by walls, with gates on all sides, crisscrossing the city in a chessboard-like layout. This […]