Many forms of distance learning involve little or no cost.
许多形式的远程学习需要很少或者就不需要花费。
Reducing the cost of learning is an important reason behind the boom in public salons.
减少学习开支是公共沙龙盛行背后的一个重要原因。
The cost of organizational learning is an important concept in the knowledge management.
组织学习的成本是知识管理研究和实践中不可忽视的重要问题。
But is learning moderately good Chinese worth the opportunity cost?
但是，把中文学到一般的水平值得花那么多时间吗？
But is learning moderately good Chinese worth the opportunity cost?
但是，把中文学到一般的水平值得花那么多时间吗？
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