全世界最喜欢你的是我而我怎样舍得让你忧伤
[quán shì jiè zuì xĭ huān nĭ de shì wŏ ér wŏ zĕn yàng shè dé ràng nĭ yōu shāng]
This translates to ‘The one who likes you best in this world is me; so how could I bear to let you be sad’. Expresses deep affectionate care, highlighting that the speaker loves someone so deeply that they cannot tolerate seeing this person unhappy.