0 to destroy a building or part of a building -- 拆掉,拆毁(建筑物等)
1 to show that what someone has said is not true -- 反驳,驳倒
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。