rudiment,基本，基础，-ary,形容词后缀。

1. They were given only rudimentary training in the job.

他们仅仅受到过基本的职业训练。

来自《权威词典》

2. He has only a rudimentary knowledge of the subject.

他对这一科只有初步的认识.

来自《简明英汉词典》

3. I have only a rudimentary knowledge of chemistry.

我只有些粗浅的化学知识.

来自《简明英汉词典》

4. They are deprived of the ability to exercise the most rudimentary workers' rights.

他们被剥夺了行使最基本的工人权利的资格。

来自柯林斯例句

5. He has a rudimentary ability to read, but he can only read simple words.

他有基本的阅读能力, 但他只能看懂简单的词.

来自《简明英汉词典》