牵手未必是情侣同床未必是夫妻
[qiān shŏu wèi bì shì qíng lǚ tóng chuáng wèi bì shì fū qī]
Translated into English would be 'Holding Hands Doesn't Necessarily Mean Lover; Sleeping In Same Bed Doesn't Have To Mean Married Couple.' It brings forward the idea that physical closeness doesn't define romantic relations. It could also challenge traditional views on intimate behavior and its connection to committed relationships.