The pseudo column LEVEL can be used in the ORDER BY clause to return the result set in search breadth first sequence.

可在 ORDER BY 子句中使用伪列 LEVEL 按照搜索宽度优先顺序返回结果集。

youdao

A simple selector is either a type selector or universal selector followed immediately by zero or more attribute selectors, ID selectors, or pseudo-classes, in any order.

一个简单选择符或者是一个类型选择符，或者是一个全局选择符，紧跟在后的是零个或多个属性选择符，ID选择符或伪类，次序任意。

youdao

So if you were to do an experiment under these conditions, you'd find that A behaves, it's basically a pseudo first order problem.

那么如果要在这些条件下做一个实验,你会发现A的表现，它基本上一个准一级问题。

youdao

The Communists are doing so because they want to nationalize most large industries, expropriate the ill-gotten gains of the oligarch class, and generally return to a pseudo-Soviet economic order.

FORBES: The Anti-Putin Opposition and the US Civil Rights Movement