rudimentary 托福GREGMAT专八

1.I have only a rudimentary knowledge of chemistry.

我有粗浅化学知识。

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

他这一科有初步认识。

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

他有基阅读能力,但他能看懂简单词。