0 money that a business or organization has already spent and cannot get back: --
From an economic perspective, the previous investments are sunk costs.
If I abandon the project, I know that my advertising expenditure is a sunk cost.
1 money that a company has already spent or invested in a particular project, etc. and that it cannot get back: --
Most investment expenditures are largely irreversible - sunk costs that cannot be recovered if market conditions turn out to be worse than expected.
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.
Vi kan slutföra det steg för steg hur lång vägen än är och den kan inte slutföras hur kort vägen än är om du inte ens markerar ditt fotavtryck.