upper circles的用法和样例：
例句
- Ablative laser resurfacing is a process by which the upper layers of aged or damaged skin are vaporized by applying a controlled laser beam.
铺的是激光烧蚀过程中上层人士年龄或损坏皮肤蒸发运用控制激光束。 - Purchasing a private island has become the hottest way of immovable property investment among European and American upper class.
购置一座私人岛屿，已是欧美中上层人士中最为热门的不动产投资方式。
词汇搭配
- upper circles 上层人士
