原谅我面无表情却念你好深
[yuán liàng wŏ miàn wú biăo qíng què niàn nĭ hăo shēn]
'Yuan Liang Wo Mianwu Biaoqing Que Nian Ni Hao Shen.' This signifies deep love or longing for someone even though it does not outwardly express. Translates to 'Forgive me for having no expressions but thinking about you so deeply'.