People seem to reach a plateau after initially hearing about AOP or learning the basics. One thought-trap goes like this.

在最初听说AOP或者学习基础知识后，似乎进入了一个平台阶段。

youdao

In recent years, a plateau phenomenon arises in the Chinese character learning, which is not fit for the present situation because of severe lack of reform.

近年汉字识字教学出现了高原现象。汉字教学改革严重滞后，远远不能适应当前汉字识字教学的形势。

youdao

To construct a modern learning library organization, an appropriate environment plateau needs to be established.

为了构建现代的学习型图书馆组织，我们必须建立与之相适应的环境平台。

youdao