Example
wǒ men我们zhào lì照例hán xuān寒暄le了yí zhèn一阵，xián chě闲扯chě扯duì队lǐ里de的xīn wén新闻yǐ hòu以后，tā他zài在bù zhī bù jué不知不觉zhōng中jiù就bǎ把tán huà谈话yǐn rù引入le了zhèng tí正题。
我们照例寒暄了一阵，闲扯扯队里的新闻以后，他在不知不觉中就把谈话引入了正题。
We exchanged pleasantries, and chatted cordially about news in the team, and he moved the conversation naturally on to the main topic.