谁等谁的相濡以沫谁许谁的地老天荒
[shéi dĕng shéi de xiāng rú yĭ mò shéi xŭ shéi de dì lăo tiān huāng]
A romantic expression meaning 'who waits for whom to live through hardships together, who promises eternal fidelity to whom.' It's deeply touching and emphasizes long-term commitments and loyalty in love despite adversity.