outer ring

• 外环

outer ring的用法和样例：

例句

1. After the Battle of Hoth, Thrawn returned to Outer Rim mapping duty.
   霍斯战役后，索龙回到外环继续他的勘测任务。
2. Microsoft tried to mobilize the potential students to join the South Outer Ring Project.
   尝试调动南外环的潜力加入微软学生实践项目。