centraltovirtually在本句中是什么意思?详见内Butcentraltovirtuallyallofthesetheorieshasbeentheroleofthe"agentofchange,"theforcethatinitiatesandimplementsmaterialprogress.

Question

central to virtually在本句中是什么意思?详见内
But central to virtually all of these theories has been the role of the "agent of change," the force that initiates and implements material progress.

Answer 1

你没问好,把这个句子的结构都给弄错了～
应该是central to theories 和 virtually all of
意思是“基本上所有这些理论的中心角色都是.”