BBC在线收听下载:奥巴马宣布对俄罗斯实施制裁

短语讲解：

1. Reports from Ukraine say pro-Russian armed men have seized at least one Ukrainian warship anchored in the Crimean port of Sevastopol.

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

2. The Ukrainian Defense Ministry spokesman said at least 15 men were involved in the assault during which they set off grenades on board a ship named as the Ternopil.

set off 出发; （使）开始
例句：Within days they will set off again to seek their prey.
几天后海盗们将再度出发寻找他们的“猎物”。

3. Other reports say the armed men have taken control of two other Ukrainian warships moored in the port.

take control of 控制
例句：Surely she would take control of the situation; after all she was a professional. 
她肯定会控制这局面，她毕竟是个行家。

4. The Taliban say they carried out the attack. Our world affairs correspondent David Loyn reports from Kabul.

carry out 执行; 进行
例句：No matter what we do, we must carry out our duties. 
无论干什么工作,我们都应履行自己的职责. 

5. After many false leads, Australian authorities say that debris spotted southwest of Perth is the most tangible breakthrough so far in efforts to solve the mystery of flight MH370.

so far 到目前为止; 迄今为止
例句：So far I have no regrets.
到目前为止，我并不后悔。

6. Police in the US state of Texas are questioning five people on suspicion of running a human smuggling operation following the discovery of more than 100 people locked inside a house.

on suspicion of 有嫌疑
例句：She' s been arrested on suspicion of spying. 
她因涉嫌间谍活动而被捕。