The opportunity costs (such as lost earnings or time) incurred by parents may also have an important impact on uptake.

父母所引起的机会成本（例如失去的收入或时间）也对利用率造成了很大的影响。

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Many projects seriously in trouble are also cancelled at a fairly late stage, thus having incurred significant economic loss as well as lost opportunity costs.

许多陷入严重问题的项目在后期被取消，从而导致重大的经济损失，错失了商机。

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Preferential support to powerful lobbies and politically-advantaged uneconomical industries impose large lost opportunity costs for more productive investments.

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In addition, incomes for late 20- and early 30-somethings with wife and child tend to be higher than the traditional undergraduate-age student, so the opportunity costs meaning the lost earnings are considerably higher.

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