原来的选举被前军事首领宣布为无效。

The original elections were declared void by the former military ruler.

《柯林斯英汉双解大词典》

我一路跑回家，因为我迫不及待想向父母宣布我被北大录取的好消息。

I ran all the way home because I was very eager to announce the good news that I was admitted by the Peking University to my parents.

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2009年6月11日，墨西哥首次爆发的猪流感被宣布为全球流行病。

The outbreak of swine flu that was first deteccted in Mexico was declared a global epidemic on June 11, 2009.

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