BBC在线收听下载:足球巨星尤西比奥去世 葡萄牙举国哀悼三日

短语讲解：

1. Government forces in South Sudan are continuing to press towards the strategic city of Bor, despite suffering a number of casualties.

a number of 许多的; 一些
例句：A number of foreign governments condemned the army coup.
一些外国政府谴责马里发生的军事政变。

2. Residents in Fallujah told the BBC that at least five key districts to the east, west and north of the city have come under heavy artillery fire in what they described as indiscriminate attacks by military jets since last Monday when tribesmen and al-Qaeda militants joined forces against the regular army troops.

at least 至少
例句：Read at least 30 books.
至少读30本书。

3. The state of Minnesota has closed schools on Monday to prevent children from venturing outdoors.

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。

4. Tributes have been paid to one of football's all-time greats Eusebio who has died from heart failure.

die from 死于（某种原因，不包括疾病、过度悲伤等）
例句：Why do people still die from cancer?
人类为什还会死于癌症呢？