random

• adj. [数] 随机的；任意的；胡乱的
• n. 随意
• adv. 胡乱地

缩写自短语 at random,高速的，引申词义横冲直撞的，莽撞的，后用于指随机的。来自古法 语 randon,冲，冲力，速度，来自 randir,快跑，词源同 run.

1. lacking any definite plan or order or purpose; governed by or depending on chance;

"a random choice"

"bombs fell at random"

"random movements"

2. taken haphazardly;

"a random choice"

random

random: [14] The antecedents of random are somewhat murky. It originally meant ‘impetuosity, sudden speed, violence’, and only in the mid 17th century emerged as an adjective meaning ‘haphazard’. It was borrowed from Old French randon, which was probably a derivative of the verb randir ‘run impetuously’. This in turn was based on Frankish *rant ‘running’, which was apparently descended from prehistoric Germanic *randa.

This originally meant ‘edge’ (it is the source of English rand [OE], now obsolete as a term for ‘edge’, but reintroduced in the 20th century via Afrikaans as the name of the basic South African currency unit), but it was also widely used for ‘shield’, and it is thought that the link with ‘running impetuously’ may be the notion of soldiers running along with their shields.
=> rand

random (adj.)

"having no definite aim or purpose," 1650s, from at random (1560s), "at great speed" (thus, "carelessly, haphazardly"), alteration of Middle English noun randon "impetuosity, speed" (c. 1300), from Old French randon "rush, disorder, force, impetuosity," from randir "to run fast," from Frankish *rant "a running" or some other Germanic source, from Proto-Germanic *randa (cognates: Old High German rennen "to run," Old English rinnan "to flow, to run;" see run (v.)).

In 1980s U.S. college student slang it began to acquire a sense of "inferior, undesirable." (A 1980 William Safire column describes it as a college slang noun meaning "person who does not belong on our dormitory floor.") Random access in reference to computer memory is recorded from 1953. Related: Randomly; randomness.

random, casual

这两个形容词均含"随便的，任意的"之意。

random： 指无明确的方向或目的、方法与系统，暗示没有指挥或控制。

casual： 指非正式的，轻松随便的，强调随和性。

Interestingly, their memories are highly self-centred: although they can remember autobiographical life events in extraordinary detail, they seem to be no better than average at recalling impersonal information, such as random ( ' , 任意选取的) lists of words.

出自-2017年6月阅读原文

In her study, participants were randomly ( ' , 随机地) assigned to two groups.

出自-2017年6月阅读原文

Some scientistsmaintain that the changes we are seeing fall within the range of random (无规律的) variation—some years are cold, others warm, and we have just had an unremarkable string of warm yearsrecently—but that is becoming an increasingly rare interpretation in the face of continued and increasing warm conditions.

出自-2014年6月阅读原文

The study, published online in April in the journal Memory and Cognition, found that the "wrong" name is not random but is invariably fished out from the same relationship pond: children, siblings, friends.

2019年6月四级真题（第一套）阅读 Section C

A car that takes off from London street and lands in another random street is unlikely to happen," says Prof.

2019年6月六级真题（第二套）阅读 Section A

We do random things like asking people in the street questions and testing sports clothing.

2019年12月六级真题（第一套）听力 Section A

Comprising artists Mark Boyle and Joan hills and their children, they recreated random sections of the British landscape on gallery walls.

2014年考研真题（英语二）阅读理解 Section Ⅱ

This law abolished special educational requirements for federal jurors and required them to be selected at random from a cross section of the entire community.

2010年考研真题（英语二）阅读理解 Section Ⅱ

Those things might be social, sporting, creative or completely random -It doesn't matter, so long as they're enjoyable, and not likely to have negative side effects, such as drinking too much alcohol or going on a wild spending spree if you're on a tight

2016年考研真题（英语二）阅读理解 Section Ⅱ

the random killing of innocent people

对无辜者的随意杀戮

牛津词典

a random sample/selection (= in which each thing has an equal chance of being chosen)

随机抽样 / 选取

牛津词典

The information is processed in a random order.

信息是按随机顺序处理的。

牛津词典

The winning numbers are randomly selected by computer.

中奖号码是由电脑随机选取的。

牛津词典

My phone seems to switch itself off randomly.

我的手机好像随时自动关机。

牛津词典

[不可数名词]It introduced an element of randomness into the situation.

这就为形势增加了一种不确定因素。

牛津词典

She opened the book at random (= not at any particular page) and started reading.

她随意翻到一页就看了起来。

牛津词典

The terrorists fired into the crowd at random.

恐怖分子胡乱地向人群开枪。

牛津词典

Names were chosen at random from a list.

名字是从名单中随便点的。

牛津词典

The survey used a random sample of two thousand people across England and Wales...

该调查在英格兰和威尔士随机抽样了2,000人。

柯林斯高阶英语词典

The competitors will be subject to random drug testing.

参赛者将要接受随机药检。

柯林斯高阶英语词典

...random violence against innocent victims...

加诸无辜受害者的无端暴行

柯林斯高阶英语词典

Children's words and actions are often fairly random.

小孩子的言行常常是随性而为。

柯林斯高阶英语词典

We received several answers, and we picked one at random.

我们收到了一些答复，并从中随机挑选了一个。

柯林斯高阶英语词典

Three black people were killed by shots fired at random from a minibus.

3名黑人被从一辆面包车里胡乱射出的子弹打死了。

柯林斯高阶英语词典

The symptoms are seemingly random stoppages in production and premature failures in the electronics.

表面上看来,这些症状可以是生产过程的随机停止,和电子元件的过早故障.

期刊摘选

Your character is spawned at a random location.

你的特种兵角色被随机放置在地图的一个位置.

期刊摘选

Random wedge failure is one of the common failure types of rock slope excavation.

随机楔体的破坏是岩石开挖边坡中常见的破坏类型之一.

期刊摘选

Bill shows off the main mode, including the different mental exercises which appear in random sequence.

比尔演示了该游戏的主要模式, 包括随机出现的各种不同的思维练习.

期刊摘选

Spear phishing on the other hand is not normally targeting the random individual.

鱼叉式网络钓鱼的不同之处则在于它并不以随机目标为对象.

期刊摘选

The factors which affect rock type are random and fuzzy.

影响围岩类别的因素有很多,并且具有高度的随机性和模糊性.

期刊摘选

Yun Tianhe: Wait! You can't rush at random!

云天河: 等一下, 你不能乱闯!

期刊摘选

On option market the gain of butterfly spread investor is random.

期权市场蝶状价差的投资者获益具有随机性.

期刊摘选

One night stands and random hook ups start to look cheap.

一夜情或者被人勾引开始更为廉价.

期刊摘选

A high performance random packing verified by tests Fractionation Research Institute ( FRI ).

被美国蒸馏协会 ( FRI ) 的测试证实为高性能散堆填料.

期刊摘选

To make random in arrangement, especially in order to control the variables in an experiment.

搅和在一起以达到任意的顺序或排列.

期刊摘选

Finally, magnetic tape offers little in the way of random access.

最后, 几乎没有磁带的方式随机存取.

期刊摘选