This book mentions some rudimentary conventions.

这本书提到了一些基本惯例。

The current rules are rudimentary.

目前的规则尚不完善。

The rudimentary statistics have been saved in the file.

原始统计数据已经保存在文件里了。

He is too stupid to understand and follow simple rudimentary instructions.

他太笨了 不能理解和遵循简单的基本指示

I only have a rudimentary knowledge of this programming language.

我对这种编程语言只有初步的了解。

The first commercially produced camera had a rudimentary design, and required long exposure times.

第一个商业化生产的相机设计还很初级，需要很长的曝光时间。

There are some rudimentary concepts you need to grasp before moving forward.

在继续之前，你需要掌握一些基本概念。

Some dinosaurs had only rudimentary teeth.

有些恐龙只有未充分长成的牙齿。

He had only a rudimentary knowledge of French.

他只有最基本的法语知识。

They were given only rudimentary training in the job.

他们仅仅受到过基本的职业训练。

The earth surface of the courtyard extended into a kind of rudimentary kitchen.

院子的泥土地面延伸进一间类似简易厨房的地方。

We have a rudimentary knowledge of it.

我们已有一个初步了解。