0 to talk to someone again, usually on the phone, in order to give them some information or because you were not able to speak to them before -- 給(某人)回話;(通常指)給(某人)回電話
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。