One and the other; relating to or being two in conjunction.
예문
1. Both brothers are alive. (두 형제는 모두 살아 있다) 2. both by day and by night (낮이나 밤이나, 밤낮을 가리지 않고) 3. I love both of them. (나는 두 사람을 다 사랑한다) 4. on both sides of the street (길 양쪽에) 5. It was the happiest time of both their lives. (그들 두 사람의 생애에서 가장 행복한 때였다)
