If an animal or a person prowls around, they move around quietly, for example when they are hunting.
例句
Policemen prowled around the building.警察在大楼四周暗中巡查。
PHRASE
（动物）在觅食；（人）在寻找性伴侣（或生意）
If an animal is on the prowl, it is hunting. If a person is on the prowl, they are hunting for something such as a sexual partner or a business deal.
例句
Their fellow travellers are a mix of honeymooners, single girls on the prowl and elderly couples...他们的旅伴中有度蜜月的新人，有寻觅伴侣的单身女孩，也有老年夫妇。The new administration are on the prowl for ways to reduce spending.新政府在寻求削减开支的方法。
英汉词典释义
vi.
n.
(动物)悄然潜行(以觅食)
Our cats go on the prowl at night, and then they sleep here all day.我们家的貓晚上悄悄出去觅食，白天就在这里睡大觉。
(人)(为抓捕或行窃等)潜行；悄悄巡行以寻找
Look out for burglars on the prowl. If you see anything suspicious, call the police immediately.小心巡视，提防盜贼，如有任何可疑情况，马上打电话报警。
vt. & vi.
(动物)潜行(为捕猎等)
The tiger prowled through the jungle.老虎在森林里潜行觅食。
潜行(图谋不轨等)
A man was seen prowling around outside the factory just before the fire started.就在起火之前,有人看到一个男子在工厂外踱来踱去.
因无聊、焦躁等）徘徊； 走来走去
He prowled the empty rooms of the house at night.夜里，他在家中的空屋子里踱来踱去。
英英词典释义
Noun
1. the act of prowling (walking about in a stealthy manner)
Verb
1. move about in or as if in a predatory manner;
"The suspicious stranger prowls the streets of the town"