0 to continue doing what you said you would when you made a decision, agreement, or promise -- 继续遵守,信守(决定、协议或承诺)
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。