"那位教授的幽默感和很强的记忆力"用英语怎么表达?

题目

"那位教授的幽默感和很强的记忆力"用英语怎么表达?
"我们开始干正事吧"怎么表达?用get down to

答案

that professor has a good sense of humor and a strong memory.
let's get down to business