They're two of a kind—both workaholics!

　　他們倆一個(gè)樣—都是工作狂！

　　Both of these empires had aspired to a kind of universality.

　　這兩個(gè)帝國，都渴望一種普遍性。

　　What kind of genes could cause both?

　　什么樣的基因能同時(shí)影響這二者呢？