你的微笑是我的财宝你的玩笑是我的依靠
[nĭ de wēi xiào shì wŏ de cái băo nĭ de wán xiào shì wŏ de yī kào]
'Your Smile Is My Treasure, Your Jokes Are My Dependence.' This indicates that one treasures another's happiness (smiles) very much and also relies deeply upon their interactions together (including laughter and jokes). It demonstrates an intimate, emotionally-dependent relationship with someone.