mastered的翻译，读音
释义：
a. 精通的
v be or become completely proficient or skilled in
v get on top of; deal with successfully
v have dominance or the power to defeat over
v have a firm understanding or knowledge of; be on top of
s understood perfectly
v be or become completely proficient or skilled in
v get on top of; deal with successfully
v have dominance or the power to defeat over
v have a firm understanding or knowledge of; be on top of
s understood perfectly