铅笔划不出的界限橡皮擦不掉的距离
[qiān bĭ huà bù chū de jiè xiàn xiàng pí cā bù diào de jù lí]
Literally 'the boundary that can't be drawn with a pencil and the distance that cannot be erased with an eraser,' this name symbolizes unchangeable and indelible differences or distances between things or people, emphasizing permanence and separation.