As per the context of the given description, the word 'expound' implies the meaning 'to explain in detail'. The word expound gives the meaning 'to propose 'a description or explanation at a great length' which goes appropriately as per the context of the statement and implies that 'Dr. Jones realized that she would have to 'explain the subject in a great detail'(expound) ' in order to provide a wider clarity and understanding to the students so that they can put up questions that would symbolize their effective understanding.
