山南海北shān nán hǎi běi

指遥远的地方。

例山南海北，到处都有勘探队员的足迹。

英all over the land; far and wide as south of the mountains and norths of the seas;

比喻说话乱扯一气，没有个中心。

例两人山南海北谈了半天。

英talk about this and that;