She heard that her daughter's school had invited an expert on sex education to speak at the school. Greatly relieved, Mrs. Liu anticipated that the expert would alert students to "the importance of maintaining one's virtue."
聽說學校要請專家來演講「性教育」，劉太太滿懷希望地想藉專家之口，來灌輸女兒「守貞的重要」。