step for step

例句：

1. 1. We should take steps for the future development of our company.
   我们应该采取步骤，为我们公司的未来发展规划。
2. 2.The teacher instructed us to step for step through the lesson.
   老师指示我们一步一步地通过这个课程。
3. 3.As we progressed further in our studies, we found that the material was more challenging than we had anticipated.
   随着我们在学习中进一步深入，我们发现材料比我们预期的要难。