我也憧憬过可惜你不在
[wŏ yĕ chōng jĭng guò kĕ xī nĭ bù zài]
Translates to 'I once dreamed about it, alas, you are not here'. Shows nostalgia for some unfulfilled hopes or missed opportunities usually concerning relationships. There's underlying regret but acceptance implied too, accepting certain realities and saying goodbye.