A new study by the Mercer global consulting firm says Angolan capital Luanda tops a list of the world's most expensive city for expatriates. ______________________Mercer spokesman Steven Nurney told VOA several factors have driven up costs for foreigners working in the capital of oil-rich Angola. 美世全球咨询公司的一项报告称,对于外派人员来说,安哥拉首都罗安达位列全球最昂贵城市之首.______________________美世发言人史蒂文.纽尼告诉VOA,数个因素导致在富油国安哥拉首都工作的外国人生活成本提升.
