goldfield的复数形式怎么拼写？

The main wall rock alterations of the Kangshan goldfield are silication , sericitization, carbonicacidation and pyritization.康山金矿田围岩蚀变主要为硅化 、 绢云母化、碳酸盐化及黄铁矿化....

n.采金区，金矿区...

goldfield的音标：goldfield的英式发音音标为：['gəʊldfi:ld]goldfield的美式发音音标为：['goʊldfild]...