intermediate bearer

例句：

1. 1. The intermediate stage ofthe experiment is crucial for success.
   实验的中间阶段对于成功至关重要。
2. 2. Hewas an intermediate in hisfield, but lacked theexpertise to advance.
   他在他领域里是个中级专家，但缺乏晋升所需的专业知识。
3. 3. During the transition from one system toanother, it's important to considerthe intermediate steps.
   在从一个系统转换到另一个系统时，考虑中间步骤是很重要的。