Tā / chóng / yóu / jiù / guó， / fā / xiàn / jì / yì / zhōng / de / jiē / dào / yǐ / jīng / fā / shēng / le / hěn / dà / biàn / huà。

他重游旧国，发现记忆中的街道已经发生了很大变化。

He revisited the old capital and found that the streets from his memories had changed greatly.