我曾为谁流泪你曾为我流泪
[wŏ céng wéi shéi liú lèi nĭ céng wéi wŏ liú lèi]
Translates to 'I have shed tears for someone as you've cried over me', suggesting shared emotional experiences and mutual affection or pain endured between two individuals who deeply care about each other despite challenges faced together.