1. She has never mastered the art of public speaking. 她从没掌握演讲的艺术。
2. The servant crouched to his master. 那仆人向主人低头“哈腰”。
3. Be your own master . 做你自己的主人。
英英解释
n.
1. an artist of consummate skill
2. a person who has general authority over others
3. a combatant who is able to defeat rivals
4. directs the work of other
5. presiding officer of a school
6. an original creation (i.e., an audio recording) from which copies can be made
7. an officer who is licensed to command a merchant ship
8. someone who holds a master's degree from academic institution
9. an authority qualified to teach apprentices
10. key that secures entrance everywhere v.
1. be or become completely proficient or skilled in
2. get on top of; deal with successfully
3. have dominance or the power to defeat over
4. have a firm understanding or knowledge of; be on top of
