random
01
随机的, 任意的
chosen, done, or happening by chance and without any particular plan, method, or purpose
例子
He found a random book on the shelf that turned out to be quite interesting.
他在书架上发现了一本随机的书，结果相当有趣。
She received a random email from an old friend she had n't heard from in years.
她收到了一封来自多年未联系的老朋友的随机邮件。
02
随机的, 任意的
occurring in such a way that each possible outcome has a certain probability of occurring, but the specific outcome cannot be predicted with certainty
例子
A random sample is selected from the population in such a way that each member has an equal chance of being chosen.
从总体中选出一个随机样本，使得每个成员都有同等的机会被选中。
The random variable X represents the number of heads obtained when flipping a coin three times.
随机变量X代表抛硬币三次时获得的正面次数。
词汇树
nonrandom
randomize
randomly
random
