Definition
Used to encourage someone to do their best and be very successful, especially in a performance or competition.
（用于鼓励他人）祝你表现出色！
You have to knock 'em dead with your speech tonight!
你今晚的演讲一定要让他们惊艳！
Knock 'em dead at the interview, I'm sure you'll get it.
在面试中让他们惊艳，我相信你会成功的。
Good luck with your performance today, knock 'em dead!
祝你今天的表演顺利，让他们惊艳！