英音听力讲解:科学家训练蜜蜂“挖”地雷

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短语讲解：

1. Earlier, thousands of soldiers and police stopped the group's supporters from holding their annual conference.

thousands of 成千上万的
例句：Thousands of classified documents have now been declassified.
数以千计的保密文件现在被解密了。

2. Efforts have been made to close the borders, but they remain porous, and there are reports of many civilians crossing into Cameroon and Niger as they fear getting caught up in the offensive.

catch up 追上
例句：China may be racing to catch up.
中国或许正在加紧赶上。

3. One of the men asked Mr Morsi to free political detainees in Sinai in exchange for their release.

in exchange for 交换
例句：Mr monti's big idea is a swap: liberalism in exchange for redistribution.
蒙逖先生的妙计是一个互换机制：自由主义交换再分配。

4. The country's President Juan Manuel Santos hopes the two sides will sign a peace accord this year, but no agreements have, so far, been reached.

so far 到目前为止
例句：So far, the signs are not good.
迄今的迹象并不令人乐观。

5. Scientists in Croatia say they are training bees to find unexploded mines thanks to their perfect senses of smell.

thanks to 幸亏， 多亏， 由于
例句：Now it's all my fault, thanks to you.
一切都是我的错，多亏了你。

6. Researchers from Zagreb University say that when they set out feeding points inside an experimental tent, the bees gathered mainly at those pots which had a sugar solution laced with TNT.

set out 动身； 出发
例句：We now set out to climb the hill.
我们现在出发去爬山。