random/accidental/casual.导航词义：偶然的

1. random:adj. 随机的，随意的.指无计划或目的地选择或发生的。

a random sample of 100 families

随机抽样的100个家庭

The survey was conducted based on a random selection of women who were in the shop.

在店内随机选择了一些女性进行了调查。

2. accidental:adj. 意外的，偶然的.指计划外或无意间发生的。

In fact, their meeting was not accidental.

事实上，他们的相遇并不是偶然的。

The company lost its advantages due to an accidental leak of its designs.

由于设计方案意外泄漏，该公司失去了优势。

3. casual:adj. 碰巧的，偶然的.指随意、并无计划的，只作定语。

She first heard of his name in a casual conversation.

她在一次偶然的谈话中第一次听到他的名字。

The professor made some casual remarks about his paper.

教授对他的论文随口点评了几句。

全部

1·Police will conduct random breath tests.

警察会随机进行吹气酒精测试。《柯林斯英汉双解大词典》

2·The information is processed in a random order.

信息是按随机顺序处理的。《牛津词典》

3·The interviews were given to a random sample of students.

随机抽选出部分学生进行了采访。《牛津词典》

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

我们收到了好几个答案，就随机地拣选了一个。《柯林斯英汉双解大词典》

5·We based our analysis on a random sample of more than 200 males.

我们把我们的分析基于二百多名男性的一组随机抽样。《柯林斯英汉双解大词典》

6·The survey used a random sample of two thousand people across the Midwest.

这项调查使用的是对中西部地区2000人的随机取样。《柯林斯英汉双解大词典》

7·Three African-Americans were killed by shots fired at random from a minibus.

3名非洲裔美国人被从一辆小型公共汽车中胡乱射出的子弹打死了。《柯林斯英汉双解大词典》

8·Men are exposed to more acts of random physical violence.

男人面对更多的是随机性的身体上的暴力行为。

9·What happens when the order of the index column is random?

当索引列的顺序是随机的时候，将会发生什么呢？

10·If random numbers are messed up, all security based on it is suspicious.

如果随机数搞乱了，那么基于它之上的所有安全都是可疑的。

随机

1·Police will conduct random breath tests.

警察会随机进行吹气酒精测试。《柯林斯英汉双解大词典》

2·The information is processed in a random order.

信息是按随机顺序处理的。《牛津词典》

3·The survey used a random sample of two thousand people across the Midwest.

这项调查使用的是对中西部地区2000人的随机取样。《柯林斯英汉双解大词典》

4·What happens when the order of the index column is random?

当索引列的顺序是随机的时候，将会发生什么呢？

5·That random shape changing would be consistent with the spots being clouds.

那种随机的形状变化与形成云的黑子是一致的。

随意

1·I've fallen into the habits of the solitary; my meals are snatched and random.

我已经养成了独处的习惯；我的饭菜都是随意拿来的。

2·A small boy appears utterly confused as the ears twirl apparently at random above him.

一个小男孩看起来非常困惑，而他的耳朵在他上方随意地转动着。

3·I love polka dots and this pattern has a more random splay of dots and almost looks like a hazy animal print from a distance.

我喜欢圆点花纹，这种布料上有更随意展开的圆点，远看几乎好像模糊的动物纹路。

4·It turned out that the woman, Natalie Smith, had read something on a friend's refrigerator: Practice random kindness and senseless acts of beauty.

事实证明，这位名叫娜塔莉·史密斯的女士曾在一个朋友的冰箱上读到过这样一句话：随心随意行善，无来无由求美。

5·Like most people, I connected with friends and did some random searching to better understand the service.

与大多数人一样，我与朋友建立连接，随意进行一些搜索，以便更好地理解这项服务。

任意的

1·Those who will benefit may be the elderly relatives of the random person we didn't pass in Starbucks, on the subway, or in the elevator.

那些受益的人可能是我们在星巴克、地铁或电梯里没有遇到的任意某个人的年迈亲属。

2·It's a bonus if you have moved to a new city with random roommates because you can easily join in on the things that they do.

如果你搬到新城市跟任意的室友一起居住，这是额外令人高兴的事，因为你可以很容易就加入他们所做的事情。

3·The Japanese have what could be called an interesting grammatical structure, but could also be called confusing, random, bogus or evil.

日语拥有可以称得上“有趣的”语法结构，但是也可以被称为“令人困惑的”、“任意的”、“虚假的”或是“邪恶的”。

4·Certain things are still not possible, such as binding to port 80, or writing to a random directory outside of your application container.

不过，的确有些是事情是办不到的，比如绑定80端口，或将数据写到你的应用容器之外的一个任意目录。

5·A random title is selected from the Browse database, and then purchased using the Buy database.

从浏览数据库中选择任意的一个名称，然后使用购买数据库进行购买。

随机性的

1·Yet an equally important criterion is the ability of a species to survive random global ecological catastrophes due to impacts.

然而一个同样重要的标准是，物种在随机性全球生态灾难中幸存的能力。

2·In places, the nodes have many connections with their neighbours, but the network also contains random and often long links between nodes that are very far away from one another.

在某些地方，节点有很多与他们邻居的联系，但是网络同时也包含了随机性，而且经常在两个节点间有长距离的连接。

3·Given enough detail, random or otherwise, you can construct any pattern you're looking for.

给出足够的细节，随机性或其它，你能创造出任何你正在看着的图像。

4·We can understand something that's fully random and work out the statistics and be comfortable with that to some degree.

我们能够理解一些，充满随机性，然后通过统计分析来解决的问题，而且一定程度上我们对此也很熟悉。

5·It might be in our nature to look for patterns and meaning in strange and random events.

这可能源于我们的自然天性，即对一些奇怪和随机性事件探寻其中的模式和深层含义。

随便

1·It is better to read a few books carefully than to read many at random.

随便读许多书不如细细地读几本书。

2·How do I know? Well, take one random example.

我怎么知道？好吧，我们随便举个例子。

3·But don't hurl random assaults at others and take for granted that whatever you say is truth.

但不要随便对别人人身攻击，不要理所当然地认为你说的一切都是对的。

4·Are Americans now more likely to get content from their friends than random Web sites that they wouldn't be able to find on their own?

美国人现在是否更有可能从朋友那里获得信息，而不是从他们自己无法找到的随便哪个网站上获得信息？

5·You know what kind of results we'd find if we asked 100 random American men if they thought they had a pituitary gland (something we all have in our brains)?

要知道，倘若我们随便问100个美国男人他们是否认为自己有脑垂体(我们脑中的一个组织)会得到什么样的答案。

胡乱的

1·Three African-Americans were killed by shots fired at random from a minibus.

3名非洲裔美国人被从一辆小型公共汽车中胡乱射出的子弹打死了。《柯林斯英汉双解大词典》

2·This is not random. This is not just letters put down.

他们绝非是胡乱记录下来的文字。

3·Imagination includes daydreaming, random associations, introspection, anticipating the future, recalling the past, and imagining things about oneself and other people.

想象包含了白日梦、胡乱联想、反省、预期未来、回忆过去、以及有关自己与别人的想象。

4·No time will be lost in following vague ideas and random plans.

也就不浪费时间去思念空洞的意见和胡乱的计划。

5·Xiao Lun's heart is beating hard in a random rhythm.

小伦的心胡乱地跳了起来。

无规

1·A mathematical analysis would show that they are truly random.

数学分析会表明它们真正是无规的。

2·Cloth produced from a random arrangement or matting of natural or synthetic fibers held together by adhesives, heat and pressure, or needling; felt is an example.

天然纤维或合成纤维无规排列或缠结后，再借助粘结剂、热和压力或针刺固定在一起而制成的织物，毛毡就是一个例子。

3·The radiation crosslinking of F-46 follows the theory of random crosslinking.

氟塑料—46的辐射交联反应遵循无规交联理论。

4·In the measurement of sound absorption coefficient in random incidence and determination of sound power levels of noise sources, the reverberation room is used very extensively.

混响室是声学专业的实验室用房，它在测量声波无规入射时材料的吸声系数和测量噪声源的声功率级中得到了广泛应用。

5·The nonlinear theory is a new developing frontier science which describes the complex systematic structure shape which has a random structure.

非线性理论是描述具有无规结构的复杂系统结构形态的一门新兴边缘科学。

无规则

1·As an object heats up it radiates heat, but it also generates an electric field near its surface as a result of the random thermal motion of its atoms.

物体温度升高后就会辐射出热量，但由于原子的无规则热运动，在物体表面附近还会产生电场。

胡乱地

1·Then I set off running at random down one of the avenues, looking to left and right.

于是我开始沿着其中的一条大街胡乱地跑着，边跑边左右张望。

2·John was not listening and made a random answer when called upon to reply.

约翰没有听讲，当被叫起回答问题时，他胡乱地给了个回答。

(1)at random胡乱地；随便地；任意地

(1)random sampling随机抽样；随意采样

(1)random variable随机变数，随机变量；无规变量

(1)random vibration随机振动

(1)random number随机数

(1)random noise随机噪声；不规则噪声