0 used when comparing two or more things to say that although changes will be necessary in order to take account of different situations, the basic point remains the same -- 经过必要微调地
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。