Here are the core classes.

这些是必修课程。

youdao

We have not yet started adding NIO.2 support to JRuby's core classes, but that will come soon.

JRuby的核心类目前还没有开始添加NIO.2支持，但很快就会开始。

youdao

The capability to modify core classes is powerful and can lead to elegant solutions to problems.

核心类的修改能力很强，能够生成良好的问题解决方案。

youdao

We do have, um, a focus on non- Western cultures in one of our core curriculum classes.

在核心课程中，我们确实有一门课不是讲西方文化的。

哥伦比亚大学的教程 - SpeakingMax英语口语达人

Today, we are well on our way to making core classes on ethics and sustainable business practices a real and relevant part of MBA curricula.

FORBES: Will Wall Street's Shortcomings Redefine The MBA Curriculum?

A. and requires core business classes, such as corporate strategy, accounting and finance.

WSJ: Alternatives to the M.B.A. Becoming More Popular

Asking pupils to pay fees for core activities or classes seems much worse.

ECONOMIST: School funding: Public good, public cuts | The