每当我回首过去,我都会感到幸福。
měi dāng wǒ huíshǒu guòqù , wǒ dōuhuì gǎndào xìngfú 。
Whenever I look back at the past, I always feel happy.
在这段旅程结束时,我们回首这段经历。
zài zhè duàn lǚchéng jiéshù shí , wǒmen huíshǒu zhè duàn jīnglì 。
At the end of this journey, we look back at this experience.
回首往事,他感到了一丝惆怅。
huíshǒu wǎngshì , tā gǎndào leyī sī chóuchàng 。
Looking back at the past, he felt a hint of nostalgia.