BBC在线收听下载:科学家发现新的宜居星球Proxima b

短语讲解：

1. The Italian Prime Minister Matteo Renzi says at least 120 people have been killed in the earthquake that struck towns and villages in a mountainous region overnight.

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。

2. Under the new law, banks will be prevented from charging more than 4 percentage points above the central bank's base rate.

prevent from 阻止， 防止
例句：Active cure of swoon patients was important to prevent from complications.
积极救治晕厥患者,对预防并发症有重要意义。
more than 超过; 不只是; 很; 在…次以上
例句：Margaret needed support more than ever.
玛格丽特比以往更需要关心。