course registration

• 选课

course registration的用法和样例：

例句

1. This is a free selective course.
   这是一门自选课。
2. It is sure to take body-building in the speciality course of aerobics from the beginning to the end.
   将形体训练惯穿于健美操专选课的始终，才能取得良好的教学效果。