mastery[ˈmɑ:stəri]n.控制，统治
◇acquire one’s mastery of精通
gain mastery over制胜
get the mastery of精通，控制
mastery of the air制空权
mastery of the sea制海权
‖mastery learning掌握知识的学习
mastery of the air制空权
mastery of the seas制海权
mastery score掌握分数
mastery test掌握知识的测验，对知识熟练程度的测验 |