鞘的

The reverse characters on the bottom of the painting indicate the work's original intention for a tapestry or drapery design.

这幅作品其实是制作壁毯或是布幕的图样，所以可以很清楚的在画面上看到左右相反的字体。

They're self-governed and operate in swarms.

他们自治和运作群。