⇒ 即使身处天南海北,我们也要互相关心。 (Jíshǐ shēn chǔ tiān nán hǎi běi, wǒmen yě yào hùxiāng guānxīn.) Even if we are far away from one another, we must still care for each other.
(= 不同的地区) different places
⇒ 大家来自天南海北。 (Dàjiā láizì tiān nán hǎi běi.) We all come from very different places.