look out

名词 look out:

1. a person employed to watch for something to happen
   同义词：lookout, lookout man, sentinel, sentry, watch, spotter, scout, picket
2. an elevated post affording a wide view
   同义词：lookout, observation post
3. a structure commanding a wide view of its surroundings
   同义词：lookout, observation tower, lookout station, observatory
4. the act of looking out
   同义词：lookout, outlook

动词 look out:

1. be vigilant, be on the lookout, be on one's guard, be careful
   同义词：watch, watch out
2. to protect someone's interests

1. Look out!
   小心！
2. FBI is on the look out for the agent these days.
   这些天联邦调查局正在注意那个特工。
3. Police will be looking out for trouble-makers at today's match.
   今天的比赛有警察防备著捣乱分子。