动词
中文翻译：保存
同义词：
['maintain', 'preserve', 'sustain']
例句：
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1.The ancient ruins are still standing after centuries of neglect.
经过几个世纪的忽视，古老的遗迹仍然屹立不倒。
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2. The team worked tirelessly to stave off the crisis.
团队努力不懈地防止危机发生。
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3. The firefighters were determined to stave off the flames from spreading.
消防员决心阻止火焰蔓延。