再尼玛坚强我也只是一姑娘
[zài ní mă jiān qiáng wŏ yĕ zhĭ shì yī gū niáng]
Literally meaning 'However strong I pretend to be, I am still just a girl'. It conveys the message that even though one puts on a tough front, emotionally, they’re still sensitive and delicate inside.