The term "twelfth man" is used to refer to the fans of a football team. Each team in football has 11 players on the pitch, but if the fans are particularly loud in their support they can help their team, they can encourage them.

“第12名队员”用来统指足球队的球迷。足球队上场比赛的队员是11名，但是，如果现场球迷支持的呼声很高的话，他们支持的球队可能会更加斗志昂扬。

When this happens the fans are called the twelfth man – they have the effect of an extra player: the game is now 11 vs 12. Many teams refer to their fans as the 12th man, and fans themselves will also carry banners calling themselves the 12th man.

在这种情况下，现场球迷就被称为“第12名队员”——他们的存在就相当于给球队增加了一名比赛队员，那么场上就是11人对12人了。很多球队都把自己的球迷称为“第12名队员”，球迷自己也会在比赛现场打出横幅，自称是“第12名队员”。