expansin crack

例句：

1. 1. The company isexpanding its operations in the new market.
   该公司正在新市场扩展其业务。
2. 2. The teamexpanded their knowledge of the subject by readingmore books.
   通过阅读更多书籍，团队扩展了他们对主题的知识。
3. 3. Thegarden was expanded to includea pond and a vegetable garden.
   花园被扩建，包括一个池塘和一个蔬菜园。