The little boy held his mother's hand firmly when crossing the street.
那小男孩过马路时紧抓着母亲的手。
This problem is hard to solve.
要解决这个问题不简单。
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.