0 to hide on a ship, aircraft, or other vehicle in order to escape from a place or to travel without paying -- (藏在船隻、飛機或其他交通工具上)無票偷乘,偷渡
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。