0 a long structure, usually built of stone, where boats can be tied up to take on and off their goods -- 驳岸,码头
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。