名词
中文翻译：中心
同义词：
['focus', 'core', 'pivot']
例句：
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1.The center of the city is bustling with activity.
市中心非常繁忙。
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2. The center of gravity is the point around which everything moves.
重心是所有事物移动的点。
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3. The centerpiece of the exhibition was a stunning sculpture.
展览的焦点是一个令人惊叹的雕塑。