如果使用正则表达式，你必须使用~* 前缀选择不区分大小写的匹配或者~ 选择区分大小写的匹配。

To use regular expressions, you must use the prefix ~* for case insensitive match and ~ for case sensitive match.

youdao

实际上，20个问题可以区分1,048,576个不同的选择！

In fact, 20 questions let you distinguish between 1,048,576 different options!

youdao

这种方法还使得使用者必须以某种方式从看起来不可区分的列表中选择提供者。

This approach also forces the consumer to somehow choose a provider from among a seemingly indistinguishable list.

youdao

Now, part of the appeal of not making any qualitative distinctions about the worth of people's preferences, part of the appeal is that it is nonjudgmental and egalitarian.

不对人们选择的价值，进行定性区分,其魅力就在于，它是无偏见的，平等主义的。

耶鲁公开课 - 公正课程节选