VOA慢速英语:A Closer Look at the Iran Nuclear Deal

短语讲解：

1. It is first changed into a gas.

change into 换上衣服; 变为（使）
例句：Caterpillars change into butterflies or moths.
毛虫能变成蝴蝶或蛾子。

2. In April, Iran agreed to a limit of about 6,000 centrifuges.

agree to 同意， 赞成
例句：We cannot agree to consign the goods.
我们不同意寄售此货。

3. The plutonium formed in the reactor must still be separated from the rest of the fuel.

separate from 分开; 区别
例句：He decided to separate from the church.
他决定脱离教会。

4. They will also return control of billions of dollars to Iran as soon as it meets the requirements of the agreement.

as soon as 一...就
例句：I'll give him your message as soon as he's available.
他一有空我就转告他您的留言。

5. The votes of at least two-thirds of lawmakers are needed to cancel his veto.

at least 至少
例句：At least she is a paragon with her feet on the ground.
她至少是一个脚踏实地的特殊人物。