长期

• Food for the field kitchens is a chronic problem .
  供给随军食堂所需要的食品是个长期存在的问题。
• They found themselves exhausted with the protracted campaign .
  他们发现长期作战已使他们精疲力尽。
• A good shift may serve long, but it will not serve ever .
  一个好计策可能长期有用，但不能永久有效。
• Minimize drift of the instrument during prolonged operation .
  在长期操作中，使仪表的误差减至最小。
• The country was almost brought to its knees by the long strike .
  经长期罢工，国家已濒临崩溃的边缘。
• The dreadful secret of the murder was a chronic misery .
  那次可怕的秘密谋杀案是一个长期的不幸事件。
• Drugs may be used in the long-term treatment of alcoholism .
  酒精中毒患者在长期治疗中可以使用药剂。
• But this opinion of his did not cause a lasting alienation .
  但是他的这种看法，并没有造成长期的分裂。
• After a long struggle , she gained control of the business .
  她经过长期的努力，在业务上已能应付自如。
• Justice itself is the great standing policy of civil society .
  正义本身是文明社会长期存在的重要保证。