0 the part in the middle of your arm where it bends -- 팔꿈치
1 to push someone with your elbow, especially so you can move past them -- 팔꿈치로 밀치다
He elbowed his way through the crowds of shoppers.
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
길이 아무리 길어도 차근차근 완주할 수 있고, 발자국을 표시하지 않으면 아무리 길이 짧아도 완주할 수 없습니다.