southing

详细解释:n. 南向纬度差, 南进, 南行航程

例句：

An island of the west-central Philippines south of Luzon. It was first visited by Spaniards in1570.民都洛岛菲律宾中西部一岛屿，位于吕宋岛以南。西班牙于1570年最先到达该岛