He was priming the bomb to go off in an hour's time.

他在事先准备炸弹在一小时后爆炸。

《柯林斯英汉双解大词典》

Police cordoned off the area until the bomb was made safe.

警方封锁了这个地区直到炸弹被安全拆除为止。

《牛津词典》

The bomb went off in a crowded street.

炸弹在挤满人的大街上爆炸了。

《牛津词典》

Iraqi police said that a bomb, hidden near the front gate of the Rasheed market in the Dora district of Baghdad, went off as trucks loaded with fruits and vegetables were waiting to enter the market to unload.

VOA: standard.2009.06.01

Coletti told CNN that a female student overheard the boys talking about the alleged plot to set off a bomb at McKinley's graduation ceremony on June 28.

CNN: 5 middle school students charged with conspiracy to blow up Brooklyn school

The added security measures were implemented after 23-year-old Umar Farouk AbdulMutallab tried to set off a bomb aboard a Northwest Airlines flight from Amsterdam, Netherlands, to Detroit, Michigan, on Christmas.

CNN: TSA extends expanded airline security

The added security measures were implemented after Umar Farouk AbdulMutallab, 23, allegedly tried to set off a bomb aboard a Northwest Airlines flight from Amsterdam, Netherlands, to Detroit, Michigan, on December 25.

CNN: TSA maintains high security at airports