Jumper - a common name for a rugby jersey. Also the name of a player in a lineout, usually at the 2,4, and 6 positions, jumping to chatch or intercept the throw.是什么意思_Jumper - a common name for a rugby jersey. Also the name of a player in a lineout, usually at the 2,4, and 6 positions, jumping to chatch or intercept the throw.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句