北京時(shí)間6月27日凌晨，巴西世界杯G組最后一輪美國對(duì)陣德國。美國隊(duì)雖然以0:1惜敗，但仍憑借凈勝球的優(yōu)勢(shì)力壓葡萄牙，與德國隊(duì)攜手從小組出線。

Portugal won its match against Ghana, 2-1. That ensured that both the U.S. and Portugal finished second in Group G -- also known as the "Group of Death -- with 4 points apiece. Enter the tie-breaker -- goal differential. The Americans and Portugal both scored 4 goals at the tournament after three games, but Portugal had given up 7 to the USA's 4.

葡萄牙2比1贏了加納。這樣死亡之組G組中美國和葡萄牙各積4分并列第二?，F(xiàn)在就靠?jī)魟偾驍?shù)來打破平局了。美國和葡萄牙均有4個(gè)進(jìn)球，但是葡萄牙的失球數(shù)是7個(gè)，而美國的失球數(shù)仍是4個(gè)。

所謂的“凈勝球數(shù)”（goal differential）就是一支球隊(duì)在一輪比賽中的進(jìn)球數(shù)（goals scored）減去失球數(shù)（goals allowed）。比如，美國的進(jìn)球數(shù)和失球數(shù)都是4，其凈勝球數(shù)就為0，而葡萄牙的進(jìn)球數(shù)是4，而失球數(shù)是7，凈勝球數(shù)則為-3，由此得出，美國隊(duì)排在葡萄牙隊(duì)之前。

如果第一輪比賽后，兩隊(duì)積分相同，凈勝球數(shù)也相同，那么就只能靠“抽簽”（draw lots）來決定哪一隊(duì)出線了。

（中國日?qǐng)?bào)網(wǎng)英語點(diǎn)津 Helen）