VOA常速英语:Obama: Iran Must be Held Accountable

短语讲解：

1. President Barack Obama says Iran's government must be held accountable for what he calls "dangerous and reckless behavior" in what the U.S. has alleged was a plot to assassinate Saudi Arabia's ambassador to the United States.

accountable for对……负责
例句：You will be held accountable for it.
你应对此做出解释。

2. Mr. Obama called it a "dangerous escalation" and part of a pattern of dangerous and reckless behavior, adding Iran must pay a price in terms of further isolation.

in terms of就…而言, 从…方面说来
例句：He thought of everything in terms of money.
他是从钱的角度来看每一件事。

3. "For Iran to have been involved in a plot like this indicates the degree to which it has been outside of the accepted norms of international behavior far too long," he said.

involve in使参与〔陷入, 牵扯到〕
例句：The vast masses there have become involved in the health campaign.
那里的广大群众都参加了卫生运动。

4. "Even if, at the highest levels, there was not detailed operational knowledge, there has to be accountability with respect to anybody in the Iranian government engaging in this kind of activity," he said.

engage in参加; 从事; 忙于
例句：He engaged in a serious study of the problem.
他对这个问题进行了认真的研究。

5. A U.S. official said the United States is sending out special teams to brief foreign governments on the case, saying among those requesting briefings were China, Russia and Turkey.

send out散布; 派遣
例句：He often sent them out to make investigations.
他常常派他们出去作调查。