你的眼中有我看不见的哀愁我的脸上有你猜不到的悲伤
[nĭ de yăn zhōng yŏu wŏ kàn bù jiàn de āi chóu wŏ de liăn shàng yŏu nĭ cāi bù dào de bēi shāng]
'In your eyes, there is sorrow that I cannot see; on my face, there's sadness you cannot guess.' This username speaks about deep emotions hidden from each other's eyes, indicating a mutual but unexpressed feeling of melancholy.