sunk cost

基本解释

The moment when you decide to keep silence is the beginning to calculate the sunk cost.
沉默的開始，是計算沉沒成本的開始。
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Your judgment has been clouded by the sunk-cost fallacy: you hoped to get a master's degree, great food and an Italian paramour.
沉沒成本謬論影響了你的判斷：你希望得到一個碩士學位、美食和一位意大利情人。
According to Zhang, one of the problems is that most members see gym membership fees as money spent, or "a sunk cost, especially if you pay at the beginning of the year."
根據張介紹，最主要的問題是會員把健身會費看成是已經花出去的錢，或“沉沒成本，尤其是會費在年初時已經交了。”

And a licence fee to enter a market is most definitely a sunk cost.
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For the Jets, the 2013 off-season will be about whether they recognize the old economics idiom that sunk cost are sunk.
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It's a sunk cost, and I should stop worrying about it.
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沉沒成本
The basic theories of natural monopoly including Subadditivity Theory, Economics of Scope and Theory of Sustainability, etc, generalizes the technological features of natural monopoly such as network, economic sequence, enormous sunk cost and common service.
自然壟斷的基本理論,包括成本弱增理論、範圍經濟、可維持理論等,歸納自然壟斷的技術特性,即網絡性、關聯經濟性、大量的沉沒成本和普遍服務性。
旁置成本