You use proper to describe things that you consider to be real and satisfactory rather than inadequate in some way.
Two out of five people lack a proper job.
五分之二的人缺乏一份像样的工作。
The proper thing is the one that is correct or most suitable.
The Supreme Court will ensure that the proper procedures have been followed.
最高法院将保证正规的程序得到遵守。
If you say that a way of behaving is proper, you mean that it is considered socially acceptable and right.
In those days it was not thought entirely proper for a woman to be on the stage.
那时,女人登台演出被认为不太得体。
You can add proper after a word to indicate that you are referring to the central and most important part of a place, event, or object and want to distinguish it from other things that are not regarded as being important or central to it.
A distinction must be made between archaeology proper and science-based archaeology.
必须对严格意义上的考古学和以科学为基础的考古学加以区分。