adj.公开表露感情的，感情外露的，<正式>表明…
n.指示词
He greeted us in a demonstrative manner.
他热情地和我们打招呼.
Some people are more demonstrative than others.
有些人更容易流露感情。
These figures are demonstrative of our progress.
这些数字表明了我们的进步.
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