我想大声该告诉你你一直在我世界里
[wŏ xiăng dà shēng gāi gào sù nĭ nĭ yī zhí zài wŏ shì jiè lĭ]
Translates to 'I want to loudly tell you that you've always been in my world.' It expresses deep feelings and admiration for someone, wishing this important person stays forever in their life.