全世界我也可以放弃至少还有你值得珍惜
[quán shì jiè wŏ yĕ kĕ yĭ fàng qì zhì shăo hái yŏu nĭ zhí dé zhēn xī]
The phrase conveys that while the rest of the world may be expendable, there's still one thing (or person) precious enough worth cherishing more than everything else, expressing the importance and irreplaceability of this treasure to the owner.