One was official: the Home States Ball, featuring both Illinois, from which Mr Obama was a senator, and Hawaii, the state in which Mr Obama grew up and where he still likes to take his holidays.

第一个就是官方举办的故乡舞会，融合了伊力诺依州和夏威夷的特色。因为前者是奥巴马就任参议员时所在的州，后者是他从小长大现在喜欢度假的地方。

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In addition to ads, Adidas is providing the official match ball for the World Cup. It's also sponsoring 12 national teams, including Argentina, France, Germany and host South Africa.

除了广告以外，阿迪达斯还为世界杯提供官方比赛用球，并赞助了12支国家队，其中包括阿根廷、法国、德国和东道主南非。

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The Super Duplo t, the official match ball of the 1950 FIFA World Cup in Brazil.

1950年世界杯足球赛，巴西对南斯拉夫的比赛中，巴西的济津霍控制着球。

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Meanwhile, the huge crowd at the downstairs official ball had its own entertainment.

NPR: Smaller Crowd, But Still Excitement This Time

Indeed, individual tickets and bundled tickets to the official Inaugural ball have been going for thousands of dollars on both eBay and Craigslist.

CNN: STORY HIGHLIGHTS

He stared at his official National League ball, reimagining what had happened.

NEWYORKER: Uncle Rock