2. solve vt.解决; 解答
例句：He finally solved the difficulty of transportation.
他终于解决了运输的困难。
3. relevant adj. 有关的, 切题的
例句：Her appearance is not relevant to whether she can be a good teacher.
她的长相跟她能否当个好老师无关。
4. approach n. 方法，方式；手段；步骤；态度
例句：His approaches to the problem are wrong.
他处理这个问题的方法是错误的。
5. 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。
6. channel n. 途径;渠道;手段
例句：You should go through the official channels if you want the government to help.
你应该通过正式渠道来争取政府的帮助。
7. replace vt.取代, 代替; 更换, 替换
例句：Electric lights have replaced candles.
电灯已经取代了蜡烛。
8. persuade vt. 说服,劝服
例句：The salesman persuaded us to buy his product.
那个推销员说服了我们买他的产品。
9. violate vt. 违反, 违背
例句：The bus driver violated the traffic regulation.
汽车司机违反了交通规则。
10. resolution n. 正式决定, 决议
例句：The committee have passed a resolution that conditions (should) be improved.
委员会通过了改善环境的决议。
