lookout
noun [ C ] uk/ˈlʊk.aʊt/ us/ˈlʊk.aʊt/
放哨者，望风者
a person who watches for danger
One of the burglars waited outside to act as a lookout. 其中一个盗贼等在外面望风。
（尤指防备危险的）望塔，望台
a high place where a person can look at what is happening in the area around them, especially in order to watch for any danger
US and Australian English（尤指自然风光）观景处
a place from where a person can look at something, especially at an area of natural beauty
Compare: viewpoint (SIGHT)
be on the lookout for something/someone 寻找，查找，搜索
to search for something or someone
I'm always on the lookout for interesting new recipes. 我总是热衷于寻找新的有意思的菜谱。
He was surfing the web, on the lookout for bargains.
They are always on the lookout for promising new artists.
Police are on the lookout for a woman wanted in connection with the robbery.
Take care of yourself and be on the lookout for anything or anyone that looks suspicious.
keep a lookout for something/someone （尤指为防备危险而）继续密切注意，继续关注
to continue to watch carefully for something or someone, especially in order to avoid danger
Keep a lookout for small objects that a baby might swallow. 注意不要让婴儿吞食小东西。
The animals were alert, keeping a lookout for predators.
We walked on through the bush, keeping a good lookout for snakes.
One of the men stayed in the car and kept a lookout for police.
If you walk along the stream, keep a lookout for kingfishers.
Idiom
it's your own lookoutidiom UK informal 是你自己的责任，都怪你自己
used to tell someone that they are responsible for their own problems
It's your own lookout if you're not properly insured. 没有适当投保是你自己的责任。