BBC在线收听下载:美国务卿对伊朗核谈判达成协议表示乐观

1. And he said that in return, he would go to and publicly acknowledge Palestine's right to exist.

in return 作为报答
例句：They offer more information than they receive in return.
他们所提供的信息多于他们所得到的回报。

2. The American Secretary of State John Kerry has said the United States intends to negotiating in good faith to reach an agreement with Iran on its nuclear program.

intend to 打算（做）…，想要（做）…
例句：As we both have families, we intend to be discreet.
由于我们两人都已成家，所以我们打算谨慎行事。

3. A fresh round of talks is due to take place in Geneva late this week between Iran and the group of six international mediators including the U.S. Mr Kerry said he has no specific expectations.

due to 因为,由于
例句：uch of the shift is due to economic growth.
这种变化的大部分都是由于经济的增长。
take place 发生，举行；来
例句：They will now take place on january 15th.
这一切将会在明年1月15日发生。

4. Looking for clues about the evolution of Mars through its atmosphere, the orbiter will study the planet of atmosphere to try to discover why its climate changed dramatically.

look for 寻找（某人或某物）
例句：Look for computer programs which encourage reading.
找一些可以促进阅读的电脑程序。