She has a command of several languages.
To have a strong understanding or skill in a particular area or subject.
His command of mathematics is impressive.
The ability to understand or control a particular subject or skill.
ជាមួយនឹងវចនានុក្រមរូបភាព និងកាតប្លាសស្កាតដ៏មានអានុភាពដោយឥតគិតថ្លៃ។
