0 an area that is particularly suitable for young fish and other organisms to grow and live in -- (适合幼鱼或其他生物的)育苗地
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。