n. 预备知识, 基本原理, 基本训练

[医] 初步教育, 预备教育

[ noun ]
a course that provides an introduction to an art or science (or to more advanced study generally)
<noun.act>

Propaedeutics \Pro`p[ae]*deu"tics\, n.
The preliminary learning connected with any art or science;
preparatory instruction.