well-informed person

基本解释

Fang Wenshan, it is created to the intelligent, well-informed person that lyrics prevail in China.
方文山，中国流行歌词创作达人。
Yesterday, I sent an email to a Chinese small-cap company's internal IR person; he called me within an hour and he was very well informed.
昨天，我给一家中小企业的投资者关系负责人发了电子邮件，他在一个小时内就给我打电话，而且很多东西都很清楚。
If you should happen to get an old-fashioned phone call, you may well be informed of that fact by email, even if the person who took the message is within eye-contact range.
如果你碰巧接到一个稍显过时的电话，你也会通过电子邮件被告知，即使给你发邮件的人离你只有咫尺之遥。
8875.org

The kind of stuff that's so familiar that a well-informed person blows off the threat, somehow.
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