0 Something that is double-edged acts in two ways, often with one negative and one positive effect: --
1 having two possible and different meanings or effects: --
Climate changes are potentially double-edged in their consequences.
Wealth and fame can be a double-edged sword (= a situation with both positive and negative effects).
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.
Можем да го завършим стъпка по стъпка, колкото и дълъг да е пътят и не може да бъде завършен, колкото и кратък да е пътят, ако дори не маркирате отпечатъка си.