BBC在线收听下载:巴西前总统被以洗钱罪起诉

短语讲解：

1. Hillary Clinton was also asked about polling which suggests voters think she is not trustworthy.

ask about 询问，打听; 打探
例句：I went to the station to ask about the train.
我去车站询问有关火车的情况。

2. US media says at least five people, four women and a man, have been killed in a shooting in the town of Wilkinsburg near Pittsburgh in Pennsylvania.

at least 至少
例句：For that day at least he lost heart.
至少这一天他是垂头丧气的。

3. Talks between the two leaders are likely to focus on trade and environmental issues.

focus on 致力于; 使聚焦于; 对（某事或做某事）予以注意
例句：Instead, we should focus on long-term trends.
因此，我们应该将焦点集中在长期趋势。