English version

command of something

From Longman Dictionary of Contemporary Englishcommand of somethingcommand of somethingKNOW somethingknowledge of something, especially a language, or ability to use something(have a) good/excellent/poor etc command of something He’s studied in the US and has a good command of English. command
Examples from the Corpus
(have a) good/excellent/poor etc command of somethingThis is because it is essential to have a good command of both before trying to combine them.Sabathia has a fastball in the high 90s and good command of a curveball and changeup.
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