To be obliged or required by morality, law, or custom.
예문
1. I thought you must have lost your way. (당신이 틀림없이 길을 잃었을 것이라고 나는 생각했다) 2. We must eat to live. (사람은 살기 위해 먹어야 한다) 3. He must always have everything his own way. (그는 언제나 매사를 자기 뜻대로 해야 한다) 4. I must say, you look very handsome today. (너 오늘 정말 멋지게 보인다) 5. Must I stay there? (제가 거기에 머물러야만 합니까)
