0 to be able to live or deal with a situation with difficulty, usually by having just enough of something you need, such as money -- 勉強過活,勉強應付過去
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.
再长的路,一步步也能走完,再短的路,不迈开双脚也无法到达。