0 a message sent to a website, especially a blog, when it has been mentioned or linked to from another blog or website, or a link that sends this message -- (网站或博客在另一个网站或博客中被提及的)参照通知
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。