hit the jackpot
幸运万分，非常成功

例句：
You certainly hit the jackpot when you got Mrs. Smith for a teacher. She's the best in the school.
你能由史密斯太太做老师真是幸运。她是学校里最好的老师呢。

interface
界面，接口

例句：
The computer is now an important link at the interface between work and home.
计算机已经成为使办公室和家庭相连接的重要一环。