He was sworn in as president.

他宣誓就任总统。

《牛津词典》

She was sworn in as head of an interim government in March.

她3月份宣誓出任临时政府首脑。

《柯林斯英汉双解大词典》

In January he was sworn in.

一月，他宣誓就职。

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Rutherford Hayes was sworn into office as the nineteenth president of the United States in eighteen seventy-seven.

VOA: special.2010.03.11

His vice president,Theodore Roosevelt, was sworn in to replace him.

VOA: special.2010.08.05

Nancy Pelosi made history on January 4,2007 when she was sworn in as the first female speaker of the U.S.House of Representatives in its 218-year history.

VOA: standard.2010.05.11

Mr Najib, 59, was sworn in as prime minister by Malaysia's king on Monday afternoon.

BBC: Malaysia's Anwar Ibrahim urges protest over poll defeat

Mr Hollande was sworn in for a five-year term at the Elysee Palace in central Paris.

BBC: Francois Hollande becomes France's new president

Pervez Musharraf was sworn in today for a second five-year term as president of Pakistan.

NPR: Musharraf Sworn In, Promises to Lift Emergency