She learned the rudiments of bricklaying, wiring, and plumbing.

她学过一些砌砖、布线和管道工程的基本技术。

She helped to build a house, learning the rudiments of bricklaying as she went along.

她帮忙盖房子，在过程中学习了砌砖的基本技巧。

He has just learned the rudiments of Chinese.

他学汉语刚刚入门。

I taught myself the rudiments of printing.

我自学了印刷的基本知识。

I have mastered the rudiments of economics.

我已精通经济学的基本原理。