گزارش خطا در معنی کلمه 'have a good command of'

1 general:: Have the ability to use or control; have mastery of. For example, She has a remarkably good command of Japanese, or He had a good command of his emotions. [Mid-1600s]

2 general:: Phrase(s): have a good command of something to know something well. • Bill has a good command of French. • Jane has a good command of economic theory.