verb. To learn or control something completely.
master //ˈmɑː.stər// — verb
To learn or control something completely.
He mastered English in two years. او در دو سال بر انگلیسی تسلط یافت.
This entry is graded at CEFR level B1.
او در دو سال بر انگلیسی تسلط یافت.
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