Basic or elementary principles (of a subject)

• (某一学科的)基础；基本原理

Basic or elementary principles (of a subject)的用法和样例：

例句

1. The basis of a democratic state is liberty.
   民主城邦的基础是自由权。
2. Early music was based on single tunes,or melodies.
   早期的乐曲是以单一的曲调或旋律为基础的。
3. He is studying the basic principles of Marxism.
   他在学习马列主义基本原理。
4. This elementary truth seems to have eluded Quebec.
   魁北克似乎就是想回避这条基本原理。