More than half of the country's National Football League (NFL) teams have it, at least on their practice facilities.

尤其在美国——国家美式足球联盟(nfl)半数以上的球队都在使用这种草皮，至少其训练馆中会采用此技术。

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With the National Football League (NFL) in a similar state of abeyance, sports fans are becoming well-versed in American Labour law.

同时，美国美式橄榄球大联盟(nfl)也处于相似的停摆状态中，这种状况使得球迷们对美国劳动法变得无比熟悉。

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But in 2000 the National Football League (NFL) agreed to make Reebok the exclusive producer of its team-branded clothing, cutting out all other firms from the business.

而在2000年，国家足球联盟(nfl)同意让锐步(Reebok)成为其球队队服的独家生产厂商，而将所有其他公司拒之门外。

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On August 30, 2012, the National Football League (NFL) and National Football League Properties (NFLP) submitted their Memorandum of Law in support of their Motion to Dismiss the Amended Master Complaint filed by former NFL players in ongoing concussion-related litigation.

FORBES: NFL Concussion Litigation: Breaking Down The NFL's Persuasive Motion To Dismiss The Amended Master Complaint

Despite what has gone on in courtrooms thus far, it is likely that neither the National Football League (NFL) nor the National Football League Players Association (NFLPA) has the stomach for the ruling yet-to-come from the United States Court of Appeals for the Eighth Circuit.

FORBES: The NFL Lockout: A Policy With No Teeth?

On August 7, 2012, the National Collegiate Athletic Association (NCAA), Major League Baseball (MLB), National Football League (NFL), National Basketball Association (NBA), and National Hockey League (NHL) instituted a lawsuit to prevent the State of New Jersey from sponsoring a desired sports gambling system.

FORBES: Department Of Justice Steps Into Fight Over Sports Gambling In New Jersey