3 sentences

1. 我不是来叙旧的。

   wǒ bù​shì lái xù​jiù de.

   I'm not here to reminisce.

   Source: OpenSubtitles

2. 他此番前来，其旨不在叙旧，而在求助。

   tā cǐ fān qián​lái, qí zhǐ bù zài xù​jiù, ér zài qiú​zhù.

   His purpose for coming this time is not to reminisce, but to seek help.

   Source: Dong Chinese Dictionary

3. 老朋友见面，总有说不完的话，整晚都在叙旧。

   lǎo péng​you jiàn​miàn, zǒng yǒu shuō bù wán de huà, zhěng wǎn dōu zài xù​jiù.

   When old friends meet, there is always so much to say; they spent the whole night reminiscing.

   Source: Dong Chinese Dictionary