intermediary
- adj. 中间的；媒介的；中途的
- n. 中间人；仲裁者；调解者；媒介物
考试真题
- Robots capable of social engagement help with loneliness as well as cognitive functioning, but the robot itself doesn't have to engage directly—it can serve as an intermediary for human communication.
2018年12月六级真题（第二套）阅读 Section C