埃及开罗市中心再传爆炸声

 　　CAIRO, Feb. 3 (Xinhua) -- An explosion was heard in the central downtown of Egyptian capital Cairo on Tuesday, official news agency MENA reported.

　　The blast occurred at Talaat Harb square in downtown Cairo, leaving no casualties, an official source at Cairo Security Directorate was quoted by MENA as saying.

　　Earlier sources said primitive¹ explosive device was behind the blast.

　　Meanwhile, Khalid Youssef, assistant interior minister at Cairo Security Directorate, told MENA that the bomb was planted at a corridor leading to an electricity room at Harb Street.

　　Blast heard in Egypt central Cairo

　　Eyewitnesses² told state-run Nile TV that the blast destroyed the wall in front of two stores.

　　A wave of bombing attacks hit Egypt after the ouster of the Islamist president Mohamed Morsi in July 2013 by the army.

　　The militants³ killed hundreds of police and soldiers in retaliation⁴ of harsh crackdown on Morsi's supporters which left nearly 1,000 killed and thousands in prison.

　　Elsewhere in Cairo, security measures were beefed up at Cairo International Airport after two bombs were reported to be found at terminals on Tuesday morning, according to independent Youm7 website.

　　The two bombs were made of primitive electronic devices, Youm7 quoted sources at the airport as saying.

1 primitive   

adj.原始的；简单的；n.原(始)人，原始事物

参考例句：

• It is a primitive instinct to flee a place of danger.逃离危险的地方是一种原始本能。
• His book describes the march of the civilization of a primitive society.他的著作描述了一个原始社会的开化过程。

2 eyewitnesses   

目击者( eyewitness的名词复数 )

参考例句：

• The examination of all the eyewitnesses took a week. 对所有证人的质询用了一周的时间。
• Several eyewitnesses testified that they saw the officers hit Miller in the face. 几位目击证人证明他们看见那几个警官打了米勒的脸。

3 militants   

激进分子，好斗分子( militant的名词复数 )

参考例句：

• The militants have been sporadically fighting the government for years. 几年来，反叛分子一直对政府实施零星的战斗。
• Despite the onslaught, Palestinian militants managed to fire off rockets. 尽管如此，巴勒斯坦的激进分子仍然发射导弹。

4 retaliation   

n.报复，反击

参考例句：

• retaliation against UN workers 对联合国工作人员的报复
• He never said a single word in retaliation. 他从未说过一句反击的话。 来自《简明英汉词典》