BBC在线收听下载:美科学家称蚊子根据生物呼出二氧化碳来寻找目标

短语讲解：

1. He said a police officer was wounded along with a number of other people.

a number of 一些; 许多的
例句：A number of local personalities were present at the meeting.
一些当地名人出席了会议。

2. The financing is to come from the EU-wide rescue fund.

come from 源自; 来自某处; 出生于
例句：Ambient noise may come from any direction.
外界噪声可以来自任意方向。

3. Rescue workers in the northeastern Nigerian city of Gombe say at least 49 people were killed and dozens injured when twin blasts struck a market there.

at least 至少
例句：At least she is a paragon with her feet on the ground.
她至少是一个脚踏实地的特殊人物。

4. They’re looking into trips Lula did after his presidency to countries such as Cuba and the Dominican Republic paid by Oderbrecht.

look into 调查; 观察; 在…里查资料
例句：The Government set up a working party to look into the problem.
政府成立了工作组调查那个问题。

5. Mosquitoes use smell, sight and heat in that order when looking for food.

look for 寻找（某人或某物）; <口>找（麻烦）
例句：She acts as though she plans to look for another job.
她表现出象是打算另找工作的样子。

6. The tiny insects can sniff out CO2 from up to 50 meters and use this sense of smell to locate the source visually.

sniff out 发现，寻找
例句：It's their job to sniff out abuses of power.
他们的工作是对滥用职权的情况进行调查了解。