一颗心碎两半沉入海底
[yī kē xīn suì liăng bàn chén rù hăi dĭ]
Expressing 'A broken heart sinks into the sea', it poignantly describes deep sorrow or despair after experiencing heartbreak, symbolized by a broken heart descending into vast ocean depths, evoking images of immense grief submerged under waters.