duō / nián / bú / jiàn / de / gù / yǒu / tū / rán / lái / fǎng / wǒ / men / liáo / le / yì / zhěng / yè多年不见的故友突然来访,我们聊了一整夜。An old friend I hadn't seen for years suddenly visited, and we talked all night.