undercourse

例句：

1. 1. The undergraduate course is designed to provide students with foundational knowledge.
   本科课程旨在为学生提供基础知识。
2. 2.She took an undercourse in computer science before pursuing her master's degree.
   她在攻读硕士学位之前，先修了一门计算机科学课程。
3. 3.The undercourse has a strong emphasis on practical skills and problem-solving abilities.
   该课程特别强调实践技能和解决问题的能力。