Wǒmen shì duōnián de lǎoxiāngshi, wú huà bù tán.
We are old acquaintances of many years and can talk about anything.
Zài mòshēng de chéngshì lǐ pèngdào lǎoxiāngshi, ràng tā gǎndào géwài wēnnuǎn.
Running into an old acquaintance in an unfamiliar city made him feel especially warm.
