For an individual's cost is subjective and ephemeral; it appears only ex ante, at the moment before the individual makes a decision.

一个人的成本是主观的，转瞬即逝。它只出现在事前，即在人作出决定之前。

youdao

The cost of any individual's choice is his subjective estimate of the value ranking of the highest value foregone from making his choice.

任何一项选择的成本就是被选择所放弃的、价值排序最高的那一个主观价值。

youdao

In the former software cost management, the cost estimation methods have some problems, such as subjective experience 's effect, uncertain estimation and so on.

在以往软件成本管理中，在成本估算方法方面存在着主观经验影响大，估算不准确等问题。

youdao

Nobel economist James Buchanan often noted that costs are subjective, something not available to an external, third-party policymaker (leaving aside that few cost calculations exist today anyway).

FORBES: Federal Regulation: The Costs of Benefits