documentation
n[U]
1 documenting or being documented 文件或证据的提供或备办.
2 documents provided as evidence or proof of sth 证件
We haven't enough documentation to process your claim. 我们还没有足够的证明文件来审理你的要求.
Whenever the Italian city-states were at war with each other, Hawkwood used to hire his soldiers to princes who were willing to pay the high price he demanded.