If no value or NULL is specified for this argument, it will first look for explain tables under current authorization ID, then under SYSTOOLS schema.

如果这个参数不指定值或者指定为NULL，那么它首先会查找当前授权ID下的解释表，然后再在SYSTOOLS模式下查找。

youdao

If no value or NULL is specified for this argument, it will first look for explain tables under current authorization ID then under the SYSTOOLS schema.

如果这个参数没有指定值或者指定为NULL，那么它首先会查找当前授权ID下的解释表，然后再在SYSTOOLS模式下查找。

youdao

Did she ever explain why she didn't show up for the Denver trip?

她有解释过为什么没来丹佛的旅行吗？

youdao

We are going to explain some commonly used terms for plants and farm animals.

VOA: special.2009.07.21

This has been one of the major reasons for explaining the function of the phalanx as I will explain it to you.

而我下面所要解释的方阵的作用,也就是问题的答案

耶鲁公开课 - 古希腊历史简介课程节选

For example, he begins by borrowing the Russian formalist distinction in trying to explain what fiction is between plot and story.

举个例子，他开篇在解释那种文体介于情节和故事之间时,借用了俄国结构主义的特点。

耶鲁公开课 - 文学理论导论课程节选

Alvin Hall joins us from our London bureau to break it down for us and explain what it means for all of us.

NPR: Expert Helps Makes Sense of Stimulus Package

It was hard for anybody to explain quite what was intended, and for good reason.

ECONOMIST: A mission statement for Russia?

This may, for instance, explain why optimists work longer hours and tend to earn more.

CNN: Why we fool ourselves into optimism