lo and behold

used to present a new scene, situation, or turn of events, often with the suggestion that though surprising, it could in fact have been predicted

［用以介绍新景象、情况或事情的转变，常表示某事看似奇特但可以预料］哎哟看看

you took me out and, lo and behold, I got home to find my house had been ransacked.

你把我弄出来，哎哟看看，我回到家却发现家里已被洗劫一空。