大雄离不开的哆啦A梦
[dà xióng lí bù kāi de duō la a mèng]
'Nobita can't live without Doraemon' comes from a Japanese comic series Doraemon. Nobita(Da Xiong in mainland Chinese translation) is often helped out by Doraemon (cat robot from 22nd century), he is deeply dependent on Doraemon so the relationship here stands as friendship, dependency, or help.