at random

基本解釋

The two groups are chosen at random, so the remedy should be the only systematic difference between them.
這兩個(gè)組是隨機(jī)抽取的，所以他們?cè)谙到y(tǒng)中的唯一區(qū)別就在是否接受治療。
He looked around as the glooming evening spread from shadow to shadow; streetlights were flickering on at random, doorways and corners beginning to look threatening.
他四面看看，這時(shí)陰暗的黃昏從陰影蔓延到陰影；街燈胡亂地忽明忽暗，門口和街角開始看起來危險(xiǎn)重重。
Valid selection policies include selecting the first service in the list, selecting a service at random from the list, or user some user-defined algorithm.
合法的選擇策略包括選擇列表中的第一個(gè)服務(wù)、從列表中隨機(jī)選擇服務(wù)或使用一些用戶定義的算法。

They found that forty-one percent of the profiles chosen at random included information about alcohol or drug use.
The better way to think about this is, suppose, rather than starting at the beginning, I just grabbed some spot at random, like this one.
不從數(shù)組的頭開始遍歷，我隨即的從數(shù)組中抓一個(gè)元素，比如這個(gè)，我去看看這個(gè)元素的值。
麻省理工公開課 - 計(jì)算機(jī)科學(xué)及編程導(dǎo)論課程節(jié)選
This is what he says about them about three quarters of the way down the page: During my lunch hour, which I spent on a bench in a nearby park, the waitresses would come and sit beside me talking at random, laughing, joking, smoking cigarettes.
理查在文中,是這樣說的：,“我坐在附近公園的長(zhǎng)椅上吃午餐，那些女服務(wù)生,會(huì)坐過來和我談笑風(fēng)生。
耶魯公開課 - 1945年后的美國(guó)小說課程節(jié)選

Ten winners were chosen at random from all of the entries using a random number generator.
FORBES: Fun With Taxes: Tax Haiku Winners