the basic and most important part of something

The lack of government funding is at the core of the problem. 缺乏政府拨款是问题的关键所在。

the hard central part of some fruits, such as apples, that contains the seeds

Don't throw your apple core on the floor! 别把苹果核扔到地板上！

the centre of a planet

The earth's core is a hot, molten mix of iron and nickel. 地核是滚烫的铁镍熔融混合物。

The core of a nuclear reactor (= a device in which atoms are changed to produce energy) is the place where fission (= the dividing of atoms) happens.

the muscles around your pelvis, hips, and abdomen that you use in most body movements

These exercises are designed to strengthen your core. 这些练习设计用来强化你的核心肌群。

a long, thin cylinder-shaped mass of material taken out of the earth for study

most important or most basic

They are cutting back production of some of their core products. 他们正在减少生产他们的一些核心产品。

a value, belief, etc. that is basic and more important than any other

The final status negotiations would focus on the core issues of the peace process. 最终地位的谈判会把重心放在和平进程这一核心问题上。

As a party, we must remain true to our core beliefs.

Belief in smaller government is one of the core principles of modern conservatism.

Sports can help to teach core values such as honesty and respect.

the most important or largest part of a company's business activities

The company's core operations include entertainment and aviation. 公司的核心业务包括娱乐和航空。

They plan to sell off their acquisitions and focus on their core business.

Their strategy is to build core holdings in a variety of companies.

You need to protect your core activities as you grow into new markets.

We don't want these schemes to cut into our core business of selling electricity.

the most important parts of a course of study, that all students must learn

We want to see greater provision of subjects outside the core curriculum.

We offer intensive courses in core subjects such as mathematics and reading.

Students who miss four or more lessons of a core course will automatically fail.

We were never allowed to stray too far from the core curriculum.

Students are required to take a range of core classes in addition to their specialist study.

found in the main part of the body, but not the arms or the legs

Pilates is good for strengthening the core muscles. 普拉提对锻炼下肢肌肉很有好处。

to remove the core from a piece of fruit

Peel and core the pears before cooking them. 煮梨前先削皮去核。