Neither has explained satisfactorily how and when it got there.

His death after five weeks in police custody has not been satisfactorily explained.

How he conceived this process has never been satisfactorily explained.

Its relation to the later novel has still not been satisfactorily explained.

It's just that I don't think you've satisfactorily explained why or how your suggestion would make the article better.

The physics of this interaction have never been satisfactorily explained.

Why some people lived in the cemeteries has not been satisfactorily explained.

The extremely abrupt death of his brother had never been satisfactorily explained.

Indeed, the meanings of many words found in it have not been satisfactorily explained by scholars.

Why he was thus repudiated, after being allowed to go so far, has never been satisfactorily explained.