平胸只是为了让心离你更近
[píng xiōng zhĭ shì wéi le ràng xīn lí nĭ gèng jìn]
'Flat chest is just to get the heart closer to you'. This whimsical and endearing statement humorously suggests that having a flat chest allows one’s heart to be closer physically or metaphorically to the loved one.