送花的时候，我们不能随意选择，因为不同的花可能有不同的含义。

While sending flowers as gifts, we can't choose flowers arbitrarily, because different flowers may carry different meanings.

youdao

枪手的目标不是随意选择的。

The gunman's target was not chosen at random.

youdao

为了证明这个，霍迪尼留下了一张只有十个随意选择的单词的纸条，他将会用这些单词在他死后和他妻子交流。

In order to prove it, Houdini left his wife a secret note with 10 randomly selected words that he would communicate to her after his death.

youdao

Glancing at the bottom, this is pretty arbitrary, but I chose to format my string as follows: % 1f so at the bottom here I'm printing out %.1f, which quick sanity check means print just one digit after the decimal place.

看下这个底部，这个是相当随意的，但我选择把我的字符串格式化成这样：,所以在这个底部我打印输出，提醒一下，这是一个只打印出,小数点后一位的方法。

哈佛公开课 - 计算机科学课程节选