Constant monitoring, overscheduling and protecting children from their own problems can come at a cost. Overprotection may be contributing to the rising prevalence of anxiety disorders among children.

持续监控、为孩子制定过多计划、不让孩子自己面对问题，这些做法最后都可能导致不良后果。过度保护可能是导致越来越多儿童有焦虑症的原因之一…

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A small town is served by many competing supermarkets, which have constant marginal cost.

一个小镇有许多超市，它们有不变的边际成本。

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This brought group of trade giving a newspaper constant cost pressure.

这将给报业集团带来了一定的成本压力。

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In the past few months, the cost of wheat and sugar has more than doubled they say, and cooking gas, in constant short supply, can cost three times as much as it did a few months ago.

VOA: standard.2010.04.20

While the CPI at one time was the measure desired by the public, government efforts turned the CPI away from measuring the price changes in a fixed-weight basket of goods and services to a quasi-substitution-based basket of goods, which destroyed the concept of the CPI as a measure of the cost of living of maintaining a constant standard of living.

FORBES: CPI Inflation Rate Calculator (Experienced vs. Reported)

Dollar-cost averaging means investing a constant dollar amount on a regular basis.

FORBES: Make Sure To Sell The Right Stocks At The Right Time In Retirement