You can create a mind map by starting with the primary word or phrase of a topic in the center, with related, lesser categories branching out from it.

你可以从一个基本的词汇或主题来绘制主干，再由此引伸相关联的小类别枝干。

youdao

He usually sets three primary goals each year, and gives each goal a one word title.

他每年通常设定三个初级目标，并把每个目标用一个词来命名。

youdao

The primary reason American companies cling to obsolete, expensive, ineffective and cruel testing methods is one word: money.

而美洲公司固守着过时的，价格昂贵，无效且残忍的实验方法的主要原因就一个字：钱。

youdao

When Milton instructs his muse, "Say first, for Heav'n hides nothing from thy view," there's something more here than the primary sense of the word, which is just "first in sequence."

弥尔顿写到缪斯的时候，“请先说，天界和地狱深渊在您的眼中，一切都了如指掌“,这句中“先“除了它本身的意思“最先“之外，还有其他的含义“

耶鲁公开课 - 弥尔顿课程节选

This week, as NPR's Don Gonyea reports, one particular word emerged as a primary element of the White House effort.

NPR: Bush Accentuates the Positive in War Speeches

Also, these chains tend to rely, as In-N-Out always has, on word of mouth as their primary form of advertising.

FORBES: How America's Upstart Burger Chains Will Help McDonald's

However, this specific focus of the word on race and gender, which is now a primary part of the definition, is only a few decades old.

FORBES: Diversity Drives Innovation