He is a metallurgist.他是冶金学家.I've come to pick your brains . You're metallurgist, and I've been asked this question about steel.我是来讨教你的专门知识, 你是一位冶金专家,有人向我提出有关炼钢这个问题.The metallurgist is a scientist who decid...
The palace was built in the fifteenth century.这宫殿建于十五世纪.Two fourteenth-century manuscripts of this text are still extant...这个文本仍有两份14世纪手抄本存世。...the tradition of nineteenth-century liberalism.19世纪的自由主义传统The argument was e...