He has only a rudimentary knowledge of the subject.

他对这一科只有初步的认识.

《简明英汉词典》

I have only a rudimentary knowledge of chemistry.

我只有些粗浅的化学知识.

《简明英汉词典》

He had only a rudimentary knowledge of French.

他对法语只是略知皮毛。

辞典例句

Installing a server requires a rudimentary knowledge of networking, operating system and backup and recovery technologies.

安装服务器要求具备网络 、 操作系统安全和备份以及恢复技术方面的基本知识.

互联网

Possess the rudimentary knowledge in electron, communication, computer network, software, etc. and basic technical ability.

具备电子 、 通信 、 计算机网络 、 软件等方面的基础知识和基本技能.

互联网