rudimentary [ˌru:dɪˈmentri]

以下由轻松背单词网站提供

adj.基本的（初步的，起码的，根本的）

basic

They were given only rudimentary training in the job.他们仅仅受到过基本的职业训练。
He has only a rudimentary knowledge of the subject.他对这一科只有初步的认识。