adj.易流露感情的；論證的；[語法]指示的

He greeted us in a demonstrative manner. 他熱情地和我們打招呼。

He was neither impulsive nor demonstrative. 他既不感情用事,又不將喜怒哀樂形之于色。

Some people are more demonstrative than others. 有些人較愛流露感情.

These figures are demonstrative of our progress. 這些數(shù)字表明了我們的進(jìn)步。

"That" is a demonstrative pronoun. that是一個指示代詞。