BBC news 2011-02-18 加文本

1.The security forces in Bahrain have sealed off a square in the capital Manama after breaking up an anti-government protest.

seal off把...封锁起来

例句：The enemy made a desperate attempt to seal off the gap through which we had burst.
      敌人拼命想堵住我们已经冲开的那个突破口。

2.And I emphasised how important it was that given there will be both funerals and prayers tomorrow, that that not be marred by violence.

given(表示原因)考虑到

例句：Given the present conditions, I think she's done rather well.
      考虑到目前的条件, 我认为她已做得相当出色。

3.If there isn't proper control of the recruitment process, there's a danger that they might turn to crime or illegal activities, and they could harass local people and they might steal.

turn to(使)变成

例句：Water turns to ice at 0℃.
      水在零摄氏度时变成冰。

      She turned love to hate.
      她由爱生恨。

4.It said wide public access to events, deemed to be of major significance to society, should be ensured.

deemed to被视为

例句：Any purported resignation or vacation of office contrary to Section 145 shall be deemed to be invalid. 
      任何违反145节规定的辞职，都视为无效。