informative是什么意思？

But it's a fact that informative speaking saves lives.

For example, several months after listening to an informative speech, Pete Gentry in North Carolina rescued his brother who is choking on food, by using the method taught by student speaker, Julie Paris

In addition to saving lives, informative speakers help people learn new skills, solve problems and acquire fascinating facts about the exciting world in which they live.

He gives informative talks to young children

Informative speeches can save lives.

These emails are often informative rather than personalized correspondents requiring a response or action.

Juan Louis, a junior geology major, decided to give an informative speech about how earthquakes occur.