辅修

例句：

1. 1. She decided to take a double major in business and computer science to enhance her skills.
   她决定主修商业和计算机科学双学位来提升自己的技能。
2. 2. He chose to take a minor in history as an elective, supplementing his main course in engineering.
   他选择了历史作为一门选修课，以补充他的工程主修课程。
3. 3. The student took a minor in music to complement his studies in mathematics and physics.
   这位学生主修数学和物理，辅修音乐来丰富自己的知识。