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TOEFL BNC: 5383 COCA: 5229
preservation
noun [U] /ˌprezə(r)ˈveɪʃ(ə)n/
  1. 1
    the process of working to protect something valuable so that it is not damaged or destroyed 维护;保护;保养
    preservation of :

    an organization devoted to the preservation of historic buildings 致力于维护历史建筑的组织

    Preservation of the environment is vital. 环境保护至关重要。

     Synonyms and related words
    Environmental issues: anthropogenic, biodegradable, biohazard...
    1. a.
      [only before noun] involved in preservation 保护的;维护的

      a preservation society/group/project 保护协会/团体/工程

      the Jersey Wildlife Preservation Trust 泽西野生动物保护信托基金会

       Synonyms and related words
      Environmental issues: anthropogenic, biodegradable, biohazard...
  2. 2
    the process of trying to make a situation or state continue without changing 保持;维持
    preservation of :

    the preservation of peace/public order 维持和平/公共秩序

     Synonyms and related words
    Permanence and continuity: permanence, continuity, survival...
  3. 3
    chemistry the addition of a chemical substance to food or wood in order to prevent it from decaying (对食品或木材添加化学物质以免腐烂的)保藏,防腐

    improved methods of food preservation 改良的食品保藏方法

     Synonyms and related words
    Chemical reactions and processes: action, adsorb, aerate...
  4. 4
    the degree to which something has not been changed by the effects of time or weather (不受时间或天气变化影响的)保存程度,保养(程度)
    state of preservation :

    The carvings are in a poor state of preservation. 这些雕刻作品的保存情况极差。

     Synonyms and related words
    The condition of something: state, condition, composition...

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