你说你的世界没有我我说我的世界你不在
[nĭ shuō nĭ de shì jiè méi yŏu wŏ wŏ shuō wŏ de shì jiè nĭ bù zài]
It means 'You say your world has no me, and I say my world lacks you.' This username reflects the sadness of two individuals feeling distant or separated from each other in their lives. It expresses a deep yearning for someone's presence.