名詞 demo:

1. a visual presentation showing how something works
   同義詞：demonstration

動詞 demo:

1. show or demonstrate something to an interested audience
   同義詞：show, exhibit, present, demonstrate

dem.o

n.（名詞）
【復(fù)數(shù)】 dem.os 【非正式用語】

A demonstration, as of a product or service.
產(chǎn)品展示：如產(chǎn)品或服務(wù)的宣傳
A brief tape or recording used to illustrate the qualities of a musician or other performer.
示范帶：用來說明音樂家或其他表演者水平的簡要的錄音帶
A product, such as an automobile, used for demonstration and often sold later at a discount.
示范樣品：用于產(chǎn)品宣傳并通常在后來折價出售的產(chǎn)品，例如小轎車

【引伸】
dem.o
v.（動詞）