be random
The selection process is completely random.
选择过程是完全随机的。
随意的；偶然的；无目的的
随机的；概率的；伪随机的；缺乏明确计划、秩序或目的；由偶然决定或依赖于偶然；任意的；随便的
Happening or chosen without any definite plan, order, or reason; haphazard.
Occurring for no particular reason; haphazard, unpredictable.
缺乏明确计划、秩序或目的；由偶然决定或依赖于偶然
lacking any definite plan or order or purpose; governed by or depending on chance
Involving an outcome which is impossible to predict, but which may be represented by a probability distribution; in the ideal case, involving outcomes which are equally likely.
Pseudorandom; mimicking the result of random selection.
The teacher picked a random student to answer the question.
老师随机选了一名同学来回答问题。
用法提示：random 作为形容词，表示“随机的”，修饰 student。
AI contextual example
I opened the book to a random page and started reading.
我随意翻开书的一页就开始读了起来。
用法提示：random 修饰 page，表示“任意的，随便的”。
AI contextual example
The lottery winners are chosen at random from all entries.
中奖者是从所有参与者中随机抽取的。
用法提示：at random 是固定短语，意为“随机地”，作状语。
AI contextual example
The selection process is completely random.
选择过程是完全随机的。
He picked a random number between 1 and 100.
他在1到100之间随机选了一个数字。
It is random that the same name came up twice.
同一个名字出现了两次，这很随机。
grammar · medium
易错句子He random chose a book from the shelf.
正确表达He randomly chose a book from the shelf.
Random是形容词，不能直接修饰动词。要表达‘随机地’，需使用副词randomly。
grammar · medium
易错句子The random of the results surprised us.
正确表达The randomness of the results surprised us.
Random是形容词，不能用作名词表示‘随机性’。应使用名词形式randomness。
arbitrary 基于个人意志或主观判断，而 random 基于偶然或概率。
haphazard 强调缺乏组织或计划，往往带有贬义；random 更强调无规律或偶然性。
随机样本
The researchers selected a random sample of 100 participants.
研究人员随机抽取了100名参与者作为样本。
随机选择
The winner was determined by random selection from all entries.
获胜者是从所有参赛作品中随机选出的。
随机数
The computer generated a random number between 1 and 100.
计算机生成一个1到100之间的随机数。
随机事件
The lottery is a random event with no predictable outcome.
彩票是一个随机事件，结果不可预测。
随机访问
Random access memory allows data to be read or written in any order.
随机存取存储器允许以任意顺序读写数据。
随机变量
A random variable represents the possible outcomes of a random process.
随机变量表示随机过程可能的结果。
经常与random搭配，如random sample（随机样本）
在统计学中，random variable（随机变量）是核心概念
random number（随机数）在计算机和数学中常见
random event（随机事件）描述不确定结果
random与probability共同描述不确定性
随机地；任意地
The winners were chosen at random from the entries.
获奖者是从参赛作品中随机选出的。
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Includes Synonyms & Antonyms
Expand your vocabulary with synonyms and antonyms.
Dictionary facts from AI_FALLBACK, ECDICT, WIKTIONARY, WORDNET.