zeroed

例句:

• He raised the binoculars again and zeroed in on an eleventh-floor room.
  他再一次举起双筒望远镜，瞄准了11层的一个房间。
  
• They zeroed in on the key issues for discussion.
  他们把注意力集中到讨论的关键问题上来.
  
• An enemy battery zeroed in on the crossroad.
  敌人炮兵集中炮火于那个十字路口.
  
• The Russians now have...ICBMs...zeroed in on U.S. targets.
  来自Time
• American bases overseas...are at all times zeroed in by Soviet missiles.
  来自H. Kahn
• The OTA has been zeroed into bureaucratic oblivion, 23 years after its birth.
  来自CNN