There may have been many spies and intelligence officers during the Napoleonic Wars, but it is usually extremely difficult to find the material they actually provided or worked on.
在拿破仑战争时期，可能有许多间谍和情报军官，但是通常极难找到他们实际提供或者工作的材料。
2
Stone statues were worked from single rectangular blocks of material and retained the compactness of the original shape.
石像是由单个长方形块状材料制成的，并保持原有形状的坚实度。
3
In addition, women often worked in their homes part-time, making finished articles from raw material supplied by merchant capitalists.