Mauritius is the regional leader in enacting smoke-free laws, according to the Global Voices report.

根据全球之声报告称，毛里求斯是在颁布无烟法律方面的领导者。

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In the hydraulic system of imported equipment, computer systems and other key technologies of repair services in a regional leader.

在进口设备液压系统、电脑系统等关键技术的修理服务中处于区域领先地位。

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This leader means the dominating effect and influence of one country or country-group on the regional cooperation, instead the owner-slaver relationship regulated by law or executive.

这里所说的“头”，并不具有法律或行政意义上的隶属关系，而是指一国或国家集团对地区合作的主导作用和影响力。

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That inherently projects the image of it being the regional technology leader."

VOA: standard.2010.04.21

Critics say Lula has abdicated Brazil's traditional role as regional leader to Venezuela's Hugo Chavez.

NPR: Brazil Votes in Runoff to Choose President

In some cases there are even more than two bosses (for example, a country or regional leader).

FORBES: How to Succeed With More than One Boss

Cisco sees the Asia Pacific region generating the most IP traffic by 2015, topping current regional leader North America.

FORBES: Cisco Sees Web Traffic Up 4x By 2015 To Almost A Zettabyte