Sunk costs are unrecoverable past expenditures.
These should not normally be taken into account
when determining whether to continue a project or abandon it,
because they cannot be recovered either way.
It is a common instinct to count them,
however.
沉沒的的成本是那些過去你付出了但是沒有回報
用慣常的規則來說不能算計*(灌腸?!豈不丟骰子拼輸贏)
當你考慮要繼續投入或者放棄
因為他們不可能彌補
以任何方式
縱然你往往直覺認為必須記下它們
無論如何
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