他的演讲充满激情，展现出炽热的爱国热情。

His speech was filled with incandescent patriotism that moved the audience.

incandescent 来自拉丁语词根 incandescere（变白炽），由 in-（加强）和 candescere（变白热）组成。字面意思是"白炽的、发白光的"，引申为"极明亮的、炽热的"，在这里比喻"激情澎湃的、热烈的"。