Yabla video uses of 铁杆

比如 bǐrú
shuō
最近 zuìjìn
打算 dǎsuàn
结交 jiéjiāo
de
女生 nǚshēng
刚好 gānghǎo
shì
Sūn
Yān
姿
de
铁杆 tiěgǎn
歌迷 gēmí
怎么办 zěnmebàn
For example, the girl I like lately is a huge fan of Stefanie Sun... What should I do?