BBC在线收听下载:担心中国经济 全球股市再次大跌

短语讲解：

1. Hundreds were prevented from boarding trains for Austria and Germany.

prevent from 阻止， 防止
例句：In such wet weather we must prevent the seedlings from rotting.
这样的阴雨天要防止烂秧。

2. At the end of June at the Europe summit, heads of states have decided that the so called frontier countries, that is Italy and Greece, are going to establish hot spots which would enable dam that European Union to be able to put some kind of regulations, some kind of discipline into the flood of migrants, and that is not happening.

at the end of 在…结尾，在…末端
例句：At the end of the concert, the audience stood and clapped.
音乐会结束时，观众起立鼓掌。
be able to 能够; 能
例句：We shall not be able to furnish additional copies.
我们将不能提供额外的副本。

3. Police in El Salvador say that violence involving street gangs left more than 900 people dead last month, a level of bloodshed unseen since civil war of the 1980s.

more than 多于
例句：Rob likes apples more than bananas.
罗勃对苹果比对香蕉还喜欢。

4. He said they were due to an increase in clashes between street gangs and the security forces, and to the gangs fighting each other.

due to 由于，归功于
例句：The team's success was largely due to her efforts.
该队的成功在很大程度上是由于她的努力。

5. It said the drones will monitor the movement of oil tankers and other ships to make sure they are not involved in illegal activity.

make sure 把事情弄清楚，核实或查明某事物
例句：Please make sure that the door is locked.
请弄准门确实是锁好了。

6. The event, which occurs when the waters of the Pacific become exceptionally warm, can distort weather patterns all over the world.

all over the world 全世界; 举世; 五洲四海
例句：People all over the world unite!
全世界人民联合起来!