concrete operational stage

例句：

1. 1. The company is currently in a concrete operational stage, focusing on product development.
   该公司目前正处于一个具体的操作阶段，专注于产品开发。
2. 2. During the concrete operational stage, the team worked tirelessly to ensure the project was completed on time.
   在具体操作阶段，团队努力不懈，确保项目按时完成。
3. 3. The manager emphasized the importance of staying focused during the concrete operational stage and avoiding distractions.
   经理强调了在具体操作阶段保持专注的重要性，避免分心。