It was little wonder that these units proved difficult to beat.

Earlier units proved to be unreliable, but later units were of a better design.

This unit proved to be the favorite of those who primarily use the Mzyr series and are used to aerial-battles.

He hopes the unit proved something to its teammates on defense.

By February 3, the original 300,000 units had proved to be still effective, and the epidemic was under control.

Even those units, however, proved to be notoriously porous.

However, standard military units, based on relatively inflexible tables of organization were proving less well adapted to the training mission.

This single unit proved to be particularly effective.

These early units proved the feasibility of the diesel concept, but were not always reliable.

The unit has caught the eye of some retailers and proved popular with children.