0 a type of crane (= a machine with a part like an arm), used for moving things on and off ships -- (港口装卸货物的)长臂吊车,长臂起重机
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。