BBC news 2010-08-04 加文本

1.Because of the limited helicopter fleet available and because of the weather also, it was difficult to reach out to some areas.

reach out to向...伸出援助之手,与...交往接触

例句：They have tried to reach out to these unfortunate people.
      他们已尽力向那些不幸的人们伸出援助之手。
 
      Everybody tried to reach out to those affected by the recent earthquake.
      人人都努力向最近受到地震灾害的人们伸出援助之手。

2.A lot of relief camps have come up.

come up上来,上楼;被提出讨论,发生,中选,接近;长出,发芽;出现,发生

例句：The sky was dark blue and clear when the moon came up.
      月亮出来时, 天空是深蓝色的, 非常晴朗。

3.Reports suggest they shot the two policemen on duty and then killed the other three as they slept during time off.

time off休假，放假

4.The National Intelligence chief said Mexico's security forces were involved in armed confrontations with the gangs on a daily basis.

on a daily basis每天

例句：Investors can buy and sell on a daily basis.
      投资者可每天买卖。

      News about the quake-hit area can be seen on a daily basis.
      关于地震灾区的新闻每天都能看到。