What's your major? I major in Electronic Engineering.
你的专业是什么？我主修电子工程。
What's your major in the university of Auckland?
您在奥克兰大学主攻的'专业是什么？
His major is the hardware of a computer.
他的专业是电脑硬件。
This is the one major drawback of the new system.
这是新系统的一大弊端。
He played a major role in setting up the system.
他在建立这个系统的过程中扮演了主要的角色。