名词中文翻译
中文翻译：Unknown
同义词：
['heavy', 'weighty', 'substantial', 'significant']
例句：
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1.The gravity of the situation demanded immediate action.
形势的严峻要求立即采取行动。
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2. He had a heavy heart as he thought about his lost love.
他一想到失去的爱情就心如刀绞。
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3. The significance of this event cannot be overstated.
这一事件的重要性无法低估。