It's used in introductory classes all over the world.

它在世界各地使用的入门课程。

youdao

Electronic course content in standard introductory classes had become a low-cost commodity.

标准入门课程的电子课程内容已成了低成本商品。

youdao

From the basic introductory classes to the upper level courses, each professor pushed for higher-quality writing, more attention to accuracy and detail, and a healthy respect for the grammar police.

从基本的概论课到高级课程，每个教授都督促我们写出较高质量的作品、注意文章的准确和细节描写以及语法的规范等。

youdao

All those introductory classes that often wash out half the students -- half the students fail -- they're actually doing some really creative things with technology of driving down costs and increasing passing rates pretty substantially.

WHITEHOUSE: Press Briefing

The current version of Beanstalk only supports Java, a programming language popular among businesses and taught, for example, in introductory programming classes at Stanford.

FORBES: Infrastructure Giant Amazon Drops 'Beanstalk' On Google And Salesforce