The central or most important part; the essence.

• The inner part of a thing or area.

中心或最重要的部分；本质。

• 事物或区域的内部部分。

The muscles of the torso that stabilize the body.

稳定身体的躯干核心肌群。

The central part of a fruit containing seeds.

水果中含有种子的中央部分；果核或果心。

The central part of a device or material (reactor core, CPU core, magnetic core).

• A cylindrical support around which paper or film is wound.

设备或材料的中央部分（反应堆堆芯、CPU 核心、磁芯等）。

• 用于卷绕纸张或薄膜的圆筒芯。

A cylindrical sample of rock, ice, or material obtained by drilling.

• A small solid tissue sample taken by needle biopsy.

通过钻取获得的岩石、冰或材料的圆柱状样品。

• 通过穿刺活检取得的小块组织样本。

Forming the essential or central part; fundamental.

• Deeply and authentically involved in a sport’s surrounding culture.

构成事物的核心或关键部分；基本的。

• 深入且地道地融入某项运动的圈层文化。

To remove the central part of a fruit.

• To drill or cut to extract a cylindrical sample.

去除水果的果核或果心。

• 通过钻切取出圆柱状芯样。