mindmap root((询问)) ask implies no more than the putting of a question: ~ for directions. question usually suggests the asking of a series of questions: ~ed them about every detail of the trip. interrogate suggest formal or official systematic questioning: the prosecutor ~d the witness all day. query implies a desire for authoritative information or confirmation: ~ied the reference librarian about the book. inquire implies a searching for facts or for truth often specifically by asking questions: began to ~ into the charges of espionage.