我愿淋雨感冒我愿久溺深亡
[wŏ yuàn lín yŭ găn mào wŏ yuàn jiŭ nì shēn wáng]
This phrase translates to 'I am willing to get drenched in the rain and catch a cold, I am willing to drown for long in the depths.' It implies a willingness to endure suffering for someone or something the person deeply cares about.