Definition: the job someone or something has in a particular situation Level: B2
他在这个项目中的角色是什么？
What is his ___role in this project?
大脑的这个部分在学习中扮演重要角色。
This part of the brain plays an important ___role in learning.
事实上，计算机在办公室中扮演重要角色。
In fact, computers play an important ___role in the office.
