BBC在线收听下载:伦敦科学家称发现人类易酗酒的基因

1. With fighting taking place in many of the capital suburbs, the UN has announced is withdrawing all non-essential international staff and humanitarian missions outside Damascus will be halted for the time being.

take place 发生
例句：Where were you? Where did it take place?
你当时在哪儿?在哪儿发生的?

2. We believe that with the regime's grip on power loosening, with its failure to put down the operation through conventional means, we have an increased concern about the possibility of the regime taking the desperate act of using its chemical weapons.

put down 放下
例句：Can you put down the bear?
你能把那只熊放下吗?
concern about 关注
例句：There is widespread public concern about this problem.
公众普遍地关注这个问题。

3. The soldiers were welcomed with cheers and singing outside their barracks, in other quarters they were met largely with indifferences as they took up positions around town.

take up 占用
例句：You footballers take up a lot of his time.
你足球占用了他大量时间。