The testing agreement will be the first of a series of co-operation agreements between the two organisations.

这个测试协议将是两个组织间的第一个合作协议。

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They intended to cause carnage through a series of co-ordinated explosions and bring terror into the lives of people around the globe.

他们妄图通过制造一系列协同爆炸，使世界各地的人们重新生活在恐惧中。

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He also co-authored the book Scuba Diving Safety and has written a series of dive adventure novels and short stories.

他还合作出版了《Scuba Diving Safety》一书，并写了一系列的潜水冒险小说和短篇故事。

youdao

On Monday, a series of co-ordinated car bomb attacks across the country claimed at least 31 lives and injured more than 200 people.

BBC: Iraq violence: Mortar attack on mosque 'kills seven'

In a series of co-ordinated attacks, including two suicide car bombings, on the southern Afghan city of Kandahar , the Taliban killed 35 people.

ECONOMIST: Politics this week

On Monday, a series of co-ordinated car bomb attacks took place across the country, claiming at least 31 lives and injuring more than 200 people.

BBC: Iraq violence: Baghdad cafe hit by deadly bomb attack