A third factor may be obvious, but it is not widely understood.

Exactly how the dynamo effect changes the field isn't widely understood.

It's widely understood now that the Bush crowd has gone much too far.

English is widely understood and often used as a business language.

English is widely understood by the younger generation in this village.

It was not widely understood at first that the house carried passengers.

Several of these expressions would not be widely understood in central Paris.

It is now widely understood that the military, too, must adapt.

It may be that these propositions are not widely understood.

English is also widely understood and spoken in the city.