我深知在你眼里我只是朋友
[wŏ shēn zhī zài nĭ yăn lĭ wŏ zhĭ shì péng yŏu]
'Wo Shen Zhi Zai Ni Yan Li Wo Zhi Shi Peng You', means 'I Know Clearly That I'm Just A Friend In Your Eyes.' It shows one person's sorrow after knowing they cannot be more than friends with someone they care about.