conserved

例句:

• Therefore, human prejudice is an evolutionarily conserved trait.
  来自SA
• He conserved his energy for the game.
  他为比赛而养精蓄锐.
  
• The mixed forest is cut commercially but is also carefully conserved to look good.
  这片混合林用于商业砍伐，但与此同时也进行妥善维护以保持景观。
  
• Under these conditions, the total mechanical energy remains constant, or is conserved.
  在这种条件下, 总机械能保持不变或机械能保存.
  
• Hence, in this sense energy is conserved.
  来自SA
• The first law just says the total energy is conserved.
  来自SA