Long white surplices, grave and seemly, gave place to gorgeous vestments and embroidered pluvials.

长长的白色法，得体，取代之的是华丽的法和刺绣的雨。

And “pluvial” means rain, and it rained a whole awful lot.

“雨”的意思是下雨，且下雨 了很多。

And their appearance in the fossil record corresponds with the Carnian pluvial episode, that period of intense seasonal rainfall that went on for two million years.

化石记录中的出现与卡尼期雨期相对应，那是持续 200 万年的强烈季节性降雨时期。