Yes, that's a good idea. But I have another difficulty. My written English isn't very good either.
是的,这主意不错。但我还有另外一个难题。我的书面英语也不好。
My dear friend, Mathilde. Let me tell you something. That necklace you borrowed from me wasn't a real diamond necklace. It wasn't valuable at all. The stones in the necklace were made of glass. It was worth five hundred francs at the most.