The Gradient Map should be the topmost layer first and the Hue/Saturation below it in the Layers Panel.

在图层面板中，渐变映射层应该是顶部图层，色相/饱和度图层在它的下面。

youdao

For the specular map the fabric areas of the texture are muted the most, the skin area usually gets a very de-saturated cyan-bluish hue and has a layer of noise over the entire specular map.

在高光贴图的布料区域是被大大减弱的，皮肤区域通常用降低饱和度的青蓝色并在全部高光贴图上加一层杂点。

youdao

By the time she left office in 1990, blue was a missing hue on the Liverpool parliamentary map and Sir Malcolm had become MP for the more prosperous town of Crosby.

BBC: Why Liverpool never loved Margaret Thatcher