今天，我们要学的词是ball。音标： [bɔ:l]释义：是球的意思。不外，ball 作为名词，在英语里另有一个常用的意思，指正式舞会。

例句："After being sworn in as the first-ever African American president, Barack Obama and his wife Michele are scheduled to attend ten inaugural balls on January 20th," 1月20号宣誓就职成为美国有史以来的第一位非洲裔总统后，奥巴马计划协同夫人米歇尔出席十场就职舞会。大家都很体贴米歇尔的衣饰妆扮。"The dress the first lady wears to the official balls will become part of history,"因为第一夫人到场就职正式舞会时穿的晚制服将成为历史的一部门。

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