0 a website or computer program that allows people to communicate and share information on the internet using a computer or mobile phone -- 社交网络(网站或电脑程序)
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。