The central thesis of the essay argues that technological progress depends on sustained public investment.
这篇文章的核心论点认为，技术进步依赖于持续的公共投资。
Each arm can taste, touch, and even make certain decisions on its own, letting the animal probe several crevices at once without central direction.
From a Central Ideas and Details question · Information and Ideas
The essay's final paragraph restates, in different words, the same central claim introduced in the first paragraph, this time supported by the evidence presented throughout the body of the essay.
From a Text Structure and Purpose question · Craft and Structure
As a result, each arm can process sensory information and initiate movement somewhat independently of the central brain, allowing an octopus to explore several different surfaces simultaneously.
From a Central Ideas and Details question · Information and Ideas
Which choice best defines “central”?
A — Middle, most important. “central” means middle, most important.
Which word means “middle, most important”?
A — central. “central” means middle, most important.
central — middle, most important. In Chinese: 中央的，核心的.
central is pronounced /ˈsentrəl/.
The central thesis of the essay argues that technological progress depends on sustained public investment. (这篇文章的核心论点认为，技术进步依赖于持续的公共投资。)
core, key, principal — all close in meaning to central (middle, most important).
peripheral, secondary — each the opposite of central (middle, most important).
Yes. central is on the SAT Prep Basic list — the everyday academic words the SAT assumes you already have. The Digital SAT does not test vocabulary in isolation; words like this one are tested through Words in Context questions, where you choose the word that completes a passage most logically and precisely.
center(central point)+al(adjective)