comprehensive knowledge or skill in a subject or accomplishment
精通,熟练
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she played with some mastery .她弹得颇为熟练。
 
the action or process of mastering a subject or accomplishment
掌握
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a child's mastery of language .小孩对语言的掌握。
 
control or superiority over someone or something
控制,统治
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man's mastery over nature .人对自然的控制。
 
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masteryn.精通;熟练;控制;统治;掌握
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mastern.老爷;主人;主子;专家;硕士;主管;负责人;少爷;原版;原件;…桅船
 
"Middle English: from Old French 
