Formula Sports A set of specifications, including engine displacement, fuel capacity, and weight, that determine a class of racing car.

训练课程：一套规程，包括发排机排量、燃料容量和重量，决定着赛车的级别。

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Features should include a long range, strong hull (including Ice Class), seaworthiness, large spaces for provisions and fuel, and large tenders.

参选者必须拥有长距离巡航能力、坚固的船体（破冰级）、适航性、有充分的补给和燃油储存能力以及大型的接应艇。

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When you are choosing a vehicle and you have selected the most appropriate class of vehicle for your needs, choose the most fuel efficient vehicle in that group.

当你在选择一种交通工具或已经选择了能够满足需要的最合适的一种交通工具的时候，要选择那一类当中最高效节能的那一个。

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The acquisition of a marquee American brand by a group of Brazilian deal makers surprised some in the U.S. But back in Brazil, it helped fuel the ambitions of a Brazilian business class growing increasingly flush amid an economic boom.

WSJ: First Bud, Now Heinz, Brazilian Deal Maker Lemann Grabs Brands

"We have diversified our route network, focused on providing the best product in Upper Class, Premium Economy and Economy, hedged our fuel purchasing and built up a strong cash position, " he added.

BBC: Business travellers boost Virgin

Some are being discontinued because they flopped in the market, like the Maybach ultra-luxury sedan, the Mercedes-Benz R-class or the Lexus HS250h, a pricey hybrid that fell short in terms of fuel efficiency, luxury and functionality.

FORBES: Last Call For These Cars That Will Soon Be History