But archaeologists have uncovered more advanced uses of ochre dating to around 100,000 years ago.

但是考古学家发现了更多赭石的高级用途，可以追溯到10万年前。

Next I've got some advanced uses of " by" .

接下来，我了解了“by”的一些高级用法。

A more advanced use, we can say, " -u" is for don't ignore hidden files, sometimes you want to be ignoring hidden files, except if you want to search config files, that are by default hidden.

更高级的用法，我们可以说，“-u”表示不忽略隐藏文件，有时您想忽略隐藏文件，除非您想搜索默认情况下隐藏的配置文件。