汉语翻译：
a. 提供消息的, 见闻广博的词型变化：
名词:informativeness副词:informatively英语解释：
形容词 informative:

tending to increase knowledge or dissipate ignorance同义词：enlightening, illuminating

serving to instruct of enlighten or inform同义词：instructive

providing or conveying information同义词：informatory

例句：

Full of news; informative.充满信息的; 内容充实的

I dare say anything he had to say in the lecture would have been old stuff to you but since I'm not an anthropologist I found it very interesting and informative.我想他在讲演中所要说的每个问题，对你来说，都可能是老生常谈，但是，因为我不是人类学家，我倒觉得它趣味横生，资料丰富哩。

Sam placed his new book on one side for a year while he wrote some magazine articles and informative material.萨姆把写新书的工作搁置了一年时间，在这段时间里他写了一些杂志文章和报道材料。

It will be most interesting and informative to hear Mr. Smith.届时能聆听到***先生演讲，定会是极为有趣和增长见识的。

详细解释：
in.form.a.tive
adj.（形容词）
Serving to inform; providing or disclosing information; instructive.
提供资讯的，有益的：为…提供信息服务的；提供或揭露信息的；增长见识的
【引伸】
inform.atively
adv.（副词）
inform.ativeness
n.（名词）