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1·The terrorists fired into the crowd at random.

恐怖分子胡乱地向人群开枪。《牛津词典》

2·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》

3·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。

4·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。

5·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。

6·The idea for the experiment came from observing the birds using tools to pick at random objects, such as a picture of a spider that was printed on some cloth.

这个实验的想法来自于观察鸟类使用工具随机挑选物体，比如在一些布上印有蜘蛛的图片。

7·Names were chosen at random from a list.

名字是从名单中随便点的。《牛津词典》

8·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》

9·Three people were killed by shots fired at random from a minibus.

三个人被一辆小巴里乱射的子弹打死了。《柯林斯英汉双解大词典》

10·I sat down on the floor and pulled a few books off the shelf at random.

我坐在地上，从书架上随便拿了几本书。

胡乱

1·And packed up books at random, almost mad for cheer.

把书本胡乱打包起来，因为欢喜我几乎疯狂。

2·He opened the books at random.

他胡乱地打开了书。