I am eager to study in America. However, the cost of living there is really a burden to my parents.

我渴望到美国学习。然而，那里的生活费用对我的父母来说确实是一个负担。

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This study suggests the system would repay the cost of building it within seven years.

这项研究表明这个系统可以在七年内偿还修建费用。

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Holidaymakers to Cuba will also enjoy bargain prices, according to the Holiday Cost of Living study by Thomas cook.

旅游运营商Thomas Cook公司开展的一项“度假生活成本”的研究指出，前往古巴度假的人士也将享受物美价廉。

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And then invest on someone is a lot of sacrifice" The study says the mean monthly cost incurred by caregivers was about $90.

VOA: standard.2010.05.10

They commissioned a study, a cost-benefit analysis of smoking in the Czech Republic, and what their cost-benefit analysis found was the government gains by having Czech citizens smoke.

他们资助了一项研究，进行在捷克吸烟的成本效益分析，分析结果显示,让捷克人民吸烟，能让政府获利。

耶鲁公开课 - 公正课程节选

The bulk of the cost savings in this study related to faster discharges from the hospital and the ER.

FORBES: Coronary CT Scans May Save You (And Your Hospital)

One of the world's most comprehensive cost of living surveys, Mercer's study takes 143 cities across six continents and compares the costs of over 200 items in each location.

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This week The Wall Street Journal wrote about an intriguing new study looking at the cost of hiring employees from the outside, versus promoting from within.

FORBES: Why Promoting From Within Usually Beats Hiring From Outside