1914年，一位名叫卡尔▪维塞尔斯伯格的德国研究员发表了一篇具有重大意义的论文，科学家们从中得知，鸟类在飞行的时候排成 V 字、梯形或倒过来时，会节省体力。
Since 1914, and a seminal paper by a German researcher called Carl Wieselsberger, scientists have known that birds flying in for mation—a V -shape, echelon or otherwise—expend less energy.
当然，巴塞有两名出色的前锋，佩德罗和大卫.维拉，中场哈维.埃尔南德斯，伊涅斯塔，塞尔吉奥.布斯克兹和阿尔维斯都能轻易在比赛中有出色表现。
In Pedro and David Villa, Barcelona has two top strikers, and midfielders Xavi Hernandez, Andres Iniesta, Sergio Busquets and Dani Alves are easily the top midfield in the game.
1914年，一位名叫卡尔▪维塞尔斯伯格的德国研究员发表了一篇具有重大意义的论文，科学家们从中得知，鸟类在飞行的时候排成V字、梯形或倒过来时，会节省体力。
Since 1914, and a seminal paper by a German researcher called Carl Wieselsberger, scientists have known that birds flying in formation—a V-shape, echelon or otherwise—expend less energy.
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