我从背后偷偷拥抱你的影子
[wŏ cóng bèi hòu tōu tōu yōng bào nĭ de yĭng zi]
It can be translated as 'I secretly hug your shadow from behind.' This reflects the hidden affection or the act of yearning and cherishing the memory of a loved one even if they are no longer there, or not aware of the feeling directed towards them.