After sending investigators to the scene we can now confirm that it was the result of an accidental fire.
在派出调查人员到现场后,我们现在可以确定事故是由意外失火导致的。
Modern machines can make the copy bigger or smaller, lighter or darker and copy onto both sides of the paper.
代机器可以放大、缩小、制作较亮的或较暗的复印件,也可以在纸的两面复印。