往事如烟

wǎng shì rú yān xí shang tā nà yù mèn de xīn tóu

往事如烟，袭上他那郁闷的心头。

Past events have vanished like smoke, memories beset his brooding brain.

wǎng shì rú yān tā jīng lì le tòng kǔ yǔ qū zhé yě bāo hán le xǐ yuè yǔ chéng gōng

往事如烟，它经历了痛苦与曲折，也包含了喜悦与成功。

The past is like smoke, it has experienced pain and twists and turns, also contains joy and success.