专业是什么英语怎么说

Numerical analysis is one of the major subjects for the students in the department of mathematics.

数值分析是大学数学系的一门学科专业课。

This thesis is to investigate the bilingual teaching faculty for Foreign Trade majors.

本文对外贸专业课双语教学师资问题作了较为深入的调查和研究。

Economics is my major.

经济学是我的`主修课程。

The notion of major fields of study emerged.

主修课程的概念慢慢形成。

What are his major subjects?

他的主修课程是什么？