expansion bit

例句：

1. 1. The company's expansion into new markets has been a major success.
   该公司进入新市场扩张取得了重大成功。
2. 2.The expansion of the economy has led to increased employment opportunities.
   经济的扩张导致了就业机会的增加。
3. 3.The expansion bit is a crucial part of the project that needs to be carefully managed.
   扩张部分是项目中的一个关键部分，需要仔细管理。