天南地北

tiān nán dì běi

far apart; from everywhere; (to chat) about anything and everything

Character by character

天tiān
sky

南nán
south

地dì
earth

北běi
north

毕业以后，同学们天南地北，很难见上一面。

After graduation my classmates scattered far and wide; it is hard to meet up.

Tone: neutral.

天南地北地聊 = to chat about everything under the sun.

Learn this in Lesson 1 · HSK 5: 中国的行政区划 (How the country is divided)

A dialogue, a reading, word cards with audio and a drill that uses it, in Learn Chinese with Bao. This lesson is free.