transition level

例句：

1. 1.The transition from one system to another is a complex process.
   从一个系统到另一个系统的过渡是一个复杂的过程。
2. 2. The company's transition plan has been well received by employees.
   公司的转型计划受到了员工的热烈欢迎。
3. 3. The new policy aims to improve the efficiency of the transition process.
   新政策旨在提高转型过程的效率。