名词
中文翻译：门心
同义词：
['core', 'heart', "center例句：1. The gate core is the key to the door's security system.（门心是门锁安全系统的关键。）"]
例句：
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1. The gate core is the key to the door's security system.
门心是门锁安全系统的关键。
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2.The heart of the community is the gathering place for residents.
社区的核心是居民的聚集地。
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3.The centerpiece of the exhibit is a display of rare fossils.
展览的核心展品是稀有化石的展示。