VOA慢速英语:'William Wilson,' by Edgar Allan Poe, Part Two

1. discover vt.发现; 碰见; 撞见
例句：She discovered that they'd escaped
她发现他们已经逃跑了。

2. command vt. 命令; 指挥，控制，命令
例句：He commanded his troops to attack
他命令部队发起进攻。

3. prove vt.证明，证实; [法] 验证
例句：Please prove your identity.
请证明你的身份。

4. explain vt.讲解，解释
例句：Not every judge, however, has the ability to explain the law in simple terms
然而，不是每个法官都能用简单的语言来解释法律。

5. appearance n.外貌，外观; 出现
例句：It was the president's second public appearance to date
这是总统到那时为止的第二次公开露面。

6. increase vt.增加，增大，增多
例句：The population continues to increase
人口继续增长。

7. attempt vt.尝试; 试图
例句: The only time that we attempted to do something like that was in the city of Philadelphia
只有在费城那次我们曾试着做那样的事。

8. darkness n.黑暗; 阴郁; 模糊
例句：A spotlight pierced the darkness
聚光灯穿透了黑暗。