名词
中文翻译：核心组
同义词：
['core group', "central group例句：1. The apex of the mountain is the highest point.（这座山的顶峰是最高的。）2. The company's apex executives are responsible for strategic decisions.（公司的高级管理人员负责战略决策。）"]
例句：
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1. The apex of the mountain is the highest point.
这座山的顶峰是最高的。
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2. The company's apex executives are responsible for strategic decisions.
公司的高级管理人员负责战略决策。
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3.The apex of the conference was a keynote speech by the president.
会议的最高点是由总统发表的主旨演讲。