使某人宣誓就职；使某人宣誓忠于某组织（或国家等）
swear sb in
to make sb promise to do a job correctly, to be loyal to an organization, a country, etc.
He was sworn in as president.他宣誓就任总统。
释义来自《牛津高阶英汉双解词典》第 9 版
