1be on the lookout for somebody/somethingLOOK FORto continuously watch a place or pay attention in order to find something you want or to be ready for problems or opportunities 注意某人/某事,留心某人/某事 → look out for
We’re always on the lookout for new business opportunities.
我们一直在留意,等待新的商机。
Police were on the lookout for anyone behaving suspiciously.
警察在留意形迹可疑的人。
Examples from the Corpus
be on the lookout for somebody/something• From February to July he was on the lookout forblossoms.• Naturally, he was on the lookout for more exciting activity.• But Henry was not feeling like defending anyone today, rather he was on the lookout forattack.• Pleasebe on the lookout fortalent in your classes and give seriousconsideration to auditioning yourself.• When we find that, we should be on the lookout for some ever-changing enemy, some arms-race rival.• I told Thompson to alert all the guards on duty to be on the lookout for a small brownrodent.• Police are also asking people to be on the lookout forbogusofficials following several incidents in the area.• Still, they will be on the lookout for opportunities to let members know about their achievements whenever appropriate.
2keep a lookoutWATCHto keep watching carefully for something or someone, especially for danger 密切注视,留心〔尤指危险〕
keep a lookout for
We were instructed to keep a lookout for enemy aircraft.
我们接到命令要密切注意敌机。
When you’re driving, keep a sharp lookout (=watch extra carefully) for cyclists.
3.person 人 [countableC]WATCH someone whose duty is to watch carefully for something, especially for danger 监视者,望员
4.place 地方 [countableC]PLACE a place for a lookout to watch from 哨所,望台
5that's/it's somebody's lookoutBritish EnglishBrE informal used to say that someone is responsible for deciding what they will do, and will have to suffer any bad results 那是某人自己的事;这是某人自己的责任
If he wants to keep seeing her, that's his lookout.
要是他想继续跟她在一起,那是他自己的事。
Examples from the Corpus
lookout• My lookout tree is a red spruce.• He resolved the problem by adopting the role of lookout, warning the men when strangers, particularly police, were approaching.• Both Mr and Mrs Tiller were always on the lookout for any child or woman with potential.• Please be on the lookout for talent in your classes and give serious consideration to auditioning yourself.• I told Thompson to alert all the guards on duty to be on the lookout for a small brownrodent.• From February to July he was on the lookout for blossoms.• So I was on the lookout.