0 the process of using wire brushes to separate the threads of some materials such as wool before they can be used -- 分梳,梳理
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。