Smith counters that if you factor in the hidden cost of government corn subsidies, environment degradation, and decreased human health and animal welfare, grass-fed is the more cost-effective model.
史密斯反驳说，如果你把政府谷物补贴的隐藏成本、环境恶化以及人类健康和动物保护的减少考虑在内，那么草饲模式更具成本效益。
Something may appear to be free of charge, but there may be a hidden cost.
有些东西看上去不用掏钱，但总有些隐含费用。
However, there is a hidden cost to having a job. It takes up a lot of your time.
然而，有工作的人有一项隐性开销——它占用了你大把大把的时间。
Do you really need a new phone and what is the hidden cost up sticking with your plan to get it?
你真的需要一个新手机吗？在你得到这个手机的背后你要付出多少成本？
Free smart phone apps might seem like a deal. But they can have a hidden cost: your phone's battery life.
智能手机的免费应用程序看起来很划算，但其中暗含着隐藏成本：手机的电池寿命。
The researchers say there may be a hidden cost, and that someone might excel at multi-tasking at the expense of other information processing.
研究人员称这可能存在隐藏的成本，比如有些人善于同时处理多种任务但是这会削弱对其他信息的处理能力。
The researchers say there may be a hidden cost, and that someone might excel at multi-tasking at the expense of other information processing.
研究人员称这可能存在隐藏的成本，比如有些人善于同时处理多种任务但是这会削弱对其他信息的处理能力。
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