1．convince vt.使确信，使相信；说服，劝说→convinced adj.确信的；深信的→convincing adj.令人信服的
2．acknowledge vt.承认(权威、地位)；承认(属实)；(公开)感谢→acknowledgement n．承认；感谢
3．depart vi.& vt.离开，起程→departure n．离开；出发
4．astonish vt.使十分惊讶，使吃惊→astonishment n．惊奇；惊诧
dismiss vt.不予考虑，对……不屑一提；去除，摒除；解雇；解散
①I think we can safely dismiss their objections. 不予考虑
②Dismissing her fears，she climbed higher. 摒除
③She claims she was unfairly dismissed from her post. 开除
④At 12 o'clock the class was dismissed. 解散
