0 to compare the price and quality of the same or a similar object in different shops before you decide which one to buy -- 貨比三家,逐店比較後選購
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。