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mas·tery
/'mA;stJri; US 'm&stJri/
noun
1 [uncountable, singulra]
pengetahuan yg mendalam; penguasaan
▪ She has an excellent mastery of the English language.
Dia mempunyai penguasaan yg sangat mendalam tt bahasa Inggris.
2 [uncountable]
kendali; kekuasaan
▪ human mastery of the environment
kekuasaan manusia atas lingkungan

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