VOA慢速英语:American History Series: President Wilson Helps Negotiate an End to World War

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。

      He has tried to play down his involvement in the affair.
     他极力淡化与该事的瓜葛。

2.rebellion n.对政府的(尤指武装)反抗; 造反; （对权威的）反抗, 不服从

例句：The next year they rose up in rebellion.
      第二年他们就揭竿起义了。

背叛行为, 谋反, 叛乱, 反叛

例句：The next year they rose up in rebellion.
      第二年他们就揭竿起义了。

3.surrender vt.vi.投降

例句：In the end they were forced to surrender.
      最后他们被迫投降了。

4.trench n.深沟, 地沟

例句：The farmer dug several trenches to irrigate the rice fields.
      这个农民挖了好几条沟以灌溉稻田。

5.officially adv.官方地,正式地, 公开地

例句：Figures to be officially released this week reveal that long-term unemployment is still rising.
      本周要发布的官方数字表明，长期失业的人数还在增加。