10. do everything sb can to help 尽力做---
9. see fit to do sth 认为做---合适
8. be upset about 对---感到心烦意乱
7. mark A on B = mark B with A 用A给B做记号
6. offer sb sth/ offer sth to sb 提供某人某物
offer(sb)some money for sth 出价---买
offer(sb)sth for some money 要价---卖
5. make complaints 抱怨
4. cool off 变凉;冷却;冷静
3. get/be tired of 对---感到厌倦
2. every now and then 不时地
1. look into 调查;观察