So the history of the complex grains in the early solar system is complicated and only partially understood.

The partially understood complaints of the oaf suddenly came into focus.

The mechanisms in which beta-glucans stimulate the immune system is only partially understood.

He was just some dumb kid, and his worries were based on hints, fragments, all partially understood.

And her hips, where they were pocketed by his thighs, had an emptiness in their middle she only partially understood.

Dunworthy hadn't heard that argument since the early years of the nets, when the theory was only partially understood.

The muromonab's mechanism of action is only partially understood.

The neural control of normal sleep states and the relationship to narcolepsy are only partially understood.

How the testicular environment suppresses the immune response is only partially understood.

Others work on the premise that languages with similarities can be partially understood by different species.