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。
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。
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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