preservation [ˌprezərˈveɪʃn]

例句:

• It was an unkind but pardonable act of self-preservation.
  来自C. Tomalin
• Penal provisions intended for the better preservation of game.
  来自H. J. Stephen
• For this reason it allows better beam phase-contrast preservation.
  来自SA
• The entire city is under a preservation order.
  整个城市都被纳入了保护令的保护范围。
  
• The central issue in the strike was the preservation of jobs.
  罢工的核心问题是工作职位的保留。
  
• She was held back by some sense of self-preservation.
  一种自我保护意识使她没有贸然行动。