名词
中文翻译：保鲜
同义词：
['preserve', 'preserver', 'preservative例句：1. The food was preserved in a jar for three months.（食物被保存在罐子里三个月了。）']
例句：
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1. The food was preserved in a jar for three months.
食物被保存在罐子里三个月了。
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2. The scientist used a preservative to keep the samples fresh.
科学家使用防腐剂来保持样本新鲜。
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3.The museum has a special exhibit on preservation techniques.
博物馆有一个关于保存技术的特别展览。