이를 악물고 하다

💡 Meaning
To endure a painful or difficult situation with courage because there is no other choice.
다른 선택지가 없기 때문에 어렵거나 고통스러운 상황을 용감하게 견뎌내는 거예요.
🧠 Memory Hook
Before modern medicine, soldiers wounded in battle had to undergo painful surgery without anesthesia. They were given a bullet to bite down on to manage the pain. You had no choice — you just had to endure.