Tā shuōqǐ tóngnián de shìqing, yǎnjīng lǐ chōngmǎn le huáiniàn.
When he brought up his childhood, his eyes filled with nostalgia.
Tips
grammar
说起 often introduces a topic the speaker is raising, similar to 'speaking of' or 'as for' in English. It is frequently followed by 来 to form 说起来 (speaking of it / come to think of it).
