rudimentary 托福GREGMAT专八

1.I have only a rudimentary knowledge of chemistry.

我只有些粗浅化学。

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

他这一科只有初步认。

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

他有基本阅读能力,但他只能看懂简单词。