at random是什么意思

双语例句

(1)The terrorists fired into the crowd at random.

恐怖分子胡乱地向人群开枪。

(2)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。

(3)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。

(4)The experimenter is back there with the speed knob and at random intervals, he just speeds up the tape of their heart and then slows it down.

实验者带着速度旋钮回到那里，在随机的时间间隔里，他只是给他们的心跳录音带加速，然后再减速。

(5)Names were chosen at random from a list.

名字是从名单中随便点的。

同义词

胡乱地；随便地；任意地

释义

without method or conscious decision

胡乱地；随便地，任意地

he opened the book at random.

　他信手打开书本。

考纲分布

近12年出现1次

重要程度: 3星

100%; coll 随机

考纲释义

( 1)coll. 随机

真题例句：

Pick, at random, Busuu in Cameroon (eight remaining speakers), Chiapaneco in Mexico (150) or Wadjigu in Australia (one, with a question-mark).

随便举几个例子，喀麦隆的Busuu语（剩8位使用者），墨西哥的Chiapaneco语（150位使用者）或澳大利亚的Wadjigu语（一位使用者？）。[2018年 全国卷1 阅读理解]

(1)Serial killers choose their victims at random. Surely that must make it more difficult.

连环杀手的被害人是随机选出来的。这肯定让抓到凶手更难了吧。《Sherlock Season 4》《神探夏洛克 第四季》