" They are his; and I can tell you exactly how they came into your possession" .

“它们是他的；我可以确切地告诉你它们是如何落入你手中的”。

" The best proof is that, two days later, you yourself showed me the papers and the plans that belonged to Lacombe and offered to sell them. How did these papers come into your possession" ?

“最好的证明是， 两天后，你亲自向我展示了属于 Lacombe 的文件和计划， 并提出要出售它们。这些文件是如何落入你手中的” ？