random
单词辨析：
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。
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。
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。
相关例句：
The method is based on iterative evaluations using sets of random numbers as inputs.
该方法基于迭代评估，利用随机数集作为输入。
The result showed that the maximum likelihood algorithm possesses higher stability and suitability on the random measured noise.
结果表明极大似然算法对随机测量噪声具有更高的稳定性和适应性。
The final three methods included in the Math object are max, min, and random.
Math对象中包括的最后三个方法分别是max、min和random。
Any decent shot with telescopic sights could pick us off at random.
任何借助望远镜瞄准器的像样射手都可以随意把我们逐个干掉。
The list is arranged in a random order.
名单排列不分先后。
Random Variables and General Properties of Probability Distributions;
随机变量和概率分布一般物产；