elementary
adjective uk/ˌel.ɪˈmen.tər.i/ us/ˌel.əˈmen.t̬ɚ.i/
基本的
basic
I have an elementary knowledge of physics. 我懂一些基本的物理知识。
They made some elementary mistakes. 他们犯了一些很基础的错误。
Millions of travellers fail to take even the most elementary of precautions. 上百万的旅行者甚至没有采取最基本的预防措施。
B1 初级的；基础的
relating to the early stages of studying a subject
This book contains a series of elementary exercises for learners. 本书含有为学习者设计的一系列基础练习。