Or do we want to take a third of the core out or a quarter of the core out?
或者，我们要取出核心的三分之一,或者四分之一？
To study tree rings, researchers generally take a pencil-sized core from a tree.
为了对年轮进行研究，研究人员通常会从树木取出一块铅笔大小的核心部分。
Take a look at some of the basic core components that are available to you.
下面来看看一些基本的核心组件。
Take a look at some of the basic core components that are available to you.
下面来看看一些基本的核心组件。
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