VOA慢速英语:Obama: Economic Justice is Unfinished Business

短语讲解：

1. His comments come at a time when Americans are talking about civil rights and race relations.

at a time 依次， 逐一， 每次
例句：Take it a step and a day at a time.
一天一次，一步一个脚印地做起来。

2. Many people stood outside the Lincoln Memorial to hear speakers talk about civil rights for African Americans.

talk about 讨论，谈论
例句：We talk about global warming.
我们谈到了全球变暖。

3. His comments energized the civil rights movement in the United States and led to important laws, including the Civil Rights Act of 1964.

lead to 导致
例句：All price controls lead to shortages.
所有的价格管制都会导致短缺。

4. He said the marchers brought change not only for African Americans, but also for other groups and for those hoping for freedom around the world.

not only...but also  不但…而且…
例句：Not only you but also your father is coming.
不但你，而且你父亲也要来。

5. Like Mr. Obama, Bill Clinton and Jimmy Carter belong to the Democratic Party.

belong to 属于
例句：Do you belong to any organizations or clubs?
你属于哪一个组织或俱乐部吗？

6. Some people in the crowd also took part in the 1963 march.

take part in  参加…，参与…
例句：One in ten are expected t take part in the contest.
预计每十个人就有一个要来参加这次比赛。