He has a Master's in Business Administration.

　　他獲得了工商管理碩士學位。

　　She's a past master at getting what she wants.

　　她可是個精明的人，想要什么就能得到什么。

　　You need a good ear to master the piano.

　　彈好鋼琴需要有敏銳的辨音能力。

　　My brother has a master's degree from Harvard.

　　我哥哥有哈佛大學的碩士學位。

　　It is clearly the work of a master craftsman.

　　很明顯這是工藝大師的作品。