Then, before the favor is executed, the persuader ups the ante and explains that the favor is actually larger than previously described.

然后，在该请求完成以前，说服者提高价码，并说明需要帮助的事比先前描述的事更大。

youdao

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

However, Americans with no or inadequate health insurance do have an alternative before then to waiting for an altruistic aristocrat to ante up: they can beg.

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