step area

例句：

1. 1. The engineer designed a step area to improve the efficiency of the machine.
   工程师设计了一个步进区域，以提高机器的效率。
2. 2.The new software has a step area that allows users to easily navigate through different sections.
   新的软件有一个步进区域，允许用户轻松地导航到不同的部分。
3. 3. During the construction phase, we need to ensure that the step area is properly secured to prevent any accidents.
   在施工阶段，我们需要确保步进区域得到妥善的固定，以防止任何事故的发生。