0 severe, or showing disapproval -- 严厉的,苛刻的
1 the back part of a ship or boat -- 船尾;艉
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。