heraldry的复数形式怎么写

Here a new style of heraldry seems to be developing.一种新型的标志学正在形成.Yet another book on heraldry might be thought redundant.然而另外一本关于纹章学的书或许会被认为是多余的.In heraldry, yellow indicates honor and loyalty.在纹章学中, 黄色象征光荣与忠诚....

heraldry的音标：heraldry的英式发音音标为：['herəldri]heraldry的美式发音音标为：['hɛrəldri]...

n.纹章，纹章学...