the dead of winter, the middle of winter

言語: language / 原語: the original language

語源: etymology

元号: An era name. / 減劫: (Buddhism) A process whereby human lifespans decline from 80,000 years to 10 years, decreasing by one year each year or each century. / 減号: The negative or minus sign. / 賢劫:

外言語: external language

内言語: internal language

五官: the five sense organs / 五感: the five senses / 互換: swapping, exchanging, interchanging; an interchange; compatibility / 冱寒: freezing cold, extreme cold

後漢: the Later Han Dynasty in China

互換: to swap, to exchange, to interchange

現地: the actual place; local