Many new users may not understand how to address people politely using instant messages.

You actually expect normal users to understand the consequences of accepting?

Many hookah users do not understand the health risks that come along with it.

These topics help Twitter and their users to understand what is happening in the world.

Kyocera has put forward a value that users can understand.

The user must understand and master the validity domain of its simulation.

The date types allow users to better understand the pedigree and usage of resources.

Will the user understand that the wanted subtask can be achieved by the action?

But of course Google+ will grow faster than those services, because it is moving into an established market where users understand the basic proposition.

The way you make users understand your program model is with metaphors.