a preparatory course的用法和樣例：
例句
- It is also aimed to serve as a preparatory course for students planning to travel to India on the MIT India program.
課程也是計劃赴印度參與麻省理工學院印度項目的預備課程。 - Abbey College provides the full-time university introductory course and English language curriculum for the different background and the cultural international student.
阿貝學院為不同背景和文化的國際學生提供全日制大學預備課程和英語語言課程。
