Don't mistake the model for the real thing, be aware that things are left out of the model: surprise ahead.

不要把模型误以为是现实世界，要意识到那些模型忽略掉的事物：不要以后大惊小怪。

youdao

When we had like a surprise -- wegot to go out to someplace very fancy, didn't really know what was going tohappen ahead of time.

惊喜就是——我们一起外出，去一个豪华的地方，我们真的不知道接下来会发生什么。

youdao

The man in the car sped up again, to his surprise the chicken was still running ahead of him at 60 MPH!

开车那个人再度加速，令他吃惊的是，那只鸡却以时速60英里的速度跑在他前面！

youdao

when I've been surprised. When we had like a surprise we got to go out to someplace very fancy, didn't really know what was going to happen ahead of time.

VOA: special.2010.02.08

Celtic manager Tony Mowbray had sprung a surprise ahead of kick-off by dropping striker McDonald and starting Fortune up front along with Georgios Samaras.

BBC: Celtic 1-1 Rangers

Massa had taken a surprise pole ahead of Raikkonen but Hamilton leapt off the line from third to chase Massa.

CNN: How the F1 title was won: Part one

Reserve wicketkeeper Morne van Wyk was a surprise inclusion ahead of the vastly experienced Mark Boucher while others to miss out included Albie Morkel, David Miller and Rusty Theron.

BBC: India take lead in one-day series against South Africa