most important or most basic 核心的；最重要的；最基本的 | We need to focus on our core activities. 我们需要把注意力集中在最重要的活动上。 |
| core business (=a company’ s main business activity) Selling insurance is still our core business. 核心业务 |
| +to The computer network is core to our operations. 计算机网络对于我们的运作极为重要。 |
| | a | used for describing the most important members of a group （成员）核心的，最重要的 | | 2,000 students joined the core group of activists on the march. 2000名学生加入了游行队伍中核心积极分子的行列。 | |
| | b | the most important and basic subjects that all school students must study 基础课程 | |
| | c | the most important beliefs of a person or group 核心价值观/信仰 | |