可我嘴硬心软你懂吗
[kĕ wŏ zuĭ yìng xīn ruăn nĭ dŏng ma]
'可我嘴硬心软你懂吗' means 'But my words are hard, yet my heart is soft, do you understand?'. It reflects a contradiction between the way someone talks and their true feelings, expressing vulnerability beneath a tough exterior.