这是一本简明、实用的物理学入门书。

The book is a friendly, down-to-earth introduction to physics.

《柯林斯英汉双解大词典》

您在《世界音乐入门》课上让我们写一篇音乐报告，我并不确定自己该写些什么。

The listening journal you assigned us to keep for the Intro to World Music class, I am not sure I understand what to do.

youdao

这是对一门极为复杂的学科的有益入门教程。

It's a useful introduction to an extremely complex subject.

《牛津词典》

If you are trying to model, I don't know, the efficacy of a particular drug, these are the baby-steps that you will go through.

是否你正在试图创建模型，我不知道，一种特殊药品的功效，你们要经过一些入门步骤。

麻省理工公开课 - 固态化学导论课程节选

And I like it. I took an introductory Accounting course in the undergrad

而且我喜欢会计学。本科的时候我上了一门入门会计课程，

为什么是会计学呢？ - SpeakingMax英语口语达人

All right. Now let me pause quickly over the word introduction.

现在让我们来探讨入门一词。

耶鲁公开课 - 文学理论导论课程节选