The only way you will completely master English is through persistence, hard work, and repetition.

In the second phase he had completely mastered this and his use of color became more definite.

I never got around to completely mastering this mix before my computer crashed.

"Then surely you know the prejudice I face here," she said, unable to completely master her anger.

He completely mastered this book by the age of 13 and discovered sophisticated theorems on his own.

Data raised his brows in puzzlement, one of the few expressions he had mastered completely.

His posture on stage makes it clear that he has completely mastered his craft.

The unexpectedness of such an attack from so small a creature appeared to completely master its reflexes for a moment.

When the oligarchs have completely mastered the people, they will have time to spare for other things.

Some who spent much of their careers out there never completely mastered the vagaries and vicissitudes.