All the statistical computations were performed by the new software system.
所有的统计计算均由新的软件系统完成。
A number of measures were taken to alleviate the problem.
采取了一系列措施缓解这个问题。
No payments were made last week because of a computer error.
由于计算机出错，上周未付任何款项。
Things were going fine until you showed up.
你一露面就把事情搞糟了。
The experiments were carried out under simulated examination conditions.
试验是在模拟的.情况下进行的。