如果全世界只剩一个你
[rú guŏ quán shì jiè zhĭ shèng yī gè nĭ]
If you were the only one left in the world. This name can signify deep attachment or affection towards another individual. It implies how valuable this particular person is when considering a scenario where they are all that remains. The phrase conveys a sense of isolation, but with a hopeful undertone.