Tom, çok iyi bilinen bir biyolog.
- Tom is a very well-known biologist.
Örümceklerin böcek olmadıkları iyi bilinen bir gerçektir.
- It's a well-known fact that spiders aren't insects.
A common approach is for the server to accept messages at a well-known port.
... they're probably pretty well known. ...
... in 2011, population is declining in more than 50 countries. Not well-known. ...