词汇讲解：
1. declare vt.宣布, 宣告; 声明；断言, 宣称
例句：He declared that the meeting has been postponed.
他宣布会议已延期了。
2. expert n. 专家, 能手
例句：The cook was an expert at making sauces.
那位厨师是调制味汁的能手。
3. notion n. 突然的念头, 奇想; 意图, 打算
例句：He had a sudden notion to visit all his relatives.
他心血来潮, 突然想去拜访他所有的亲戚。
4. motivate vt.作为…的动机; 激发; 诱发
例句：No one really knows what motivated him to do so.
没有人确知他那样做的动机。
5. ignore vt.不顾, 不理, 忽视
例句：His letters were ignored.
他的信无人理会。
6. involvement n. 参与;加入;插手
例句：He encourages parental involvement in the running of school.
他鼓励学生家长参与学校的管理。
7. strengthen v. 加强, 巩固
例句：They strengthened the city walls.
他们加固了城墙。
8. provoke vt. 诱导,导致
例句：The President's speech provoked much discussion.
总统的演说引发了许多议论。
9. emphasize vt. 强调
例句：My boss emphasized that everyone should come on time.
我的老板强调指出每个人都该准时到。
10. willingness n. 自愿;乐意
例句：Workers’ leaders have expressed their willingness to cooperate.
工人领袖们表达了合作的意愿。
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