一笔一划写在我心一刀一剑刻在我心
[yī bĭ yī huà xiĕ zài wŏ xīn yī dāo yī jiàn kè zài wŏ xīn]
Strokes written on my heart, and wounds inflicted by swords engraved there, implies that some things or persons have made a deep impact or unforgettable mark on the heart of this person. The former part indicates memories, while the latter part shows harm or trauma suffered.