0 a pattern or structure made from horizontal and vertical lines crossing each other to form squares -- 网格,方格;格栅,格子
1 a system of wires through which electricity is connected to different power stations across a region -- 电力网,输电网
the national grid 全国输电网
2 a pattern of squares with numbers or letters used to find places on a map -- (地图的)坐标方格
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。