0 the part of the body that joins the head to the shoulders -- 颈,脖子
1 part of a hollow object that is at the top and is narrower than the part below it -- (物体的)颈部
2 to kiss and hold a person in a sexual way -- 拥吻
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。