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短语讲解：

1. A spokesman for the Democratic presidential candidate Hillary Clinton has also said there were a number of questions that needed scrutiny.

a number of 一些; 许多的
例句：We had to face up to a number of seemingly contradictory concerns.
我们不得不正视若干看起来相互矛盾的问题。

2. The leader of Hezbollah in Lebanon Hassan Nasrallah has said its movement's MPs will vote for the election of the former army commander Micheal Aung as president of the next parliamentary session.

vote for 投票赞成; 建议
例句：I gave him my pledge that I would vote for him.
我向他保证我将投他的票。

3. Officials in Haiti said there were still at least 150 prisoners on the run after a breakout from the jail in the north of the country.

at least 至少
例句：In fact it requires at least n generators.
事实上，它至少要有n个元素。