v.question formally about policy or government business
英汉双解大词典
interpellate/ɪnˈtɜːpɛˌleɪt/
1.
V（动词）
(in European legislatures) to question (a member of the government) on a point of government policy, often interrupting the business of the day (欧洲立法机关中向政府人员提出)质询 [parliamentary procedure]