"Police! Open up!"—"Oh well," I thought, "here we go."

“警察!开门！”—“噢，天哪，”我想，“又来了。”

《柯林斯英汉双解大词典》

Oh, wait. Let me grab my bag. OK, here we go.

哦，等一等，我还要拿一下皮包。好了，走吧。

youdao

Oh oh oh oh no time to waste so here we go.

噢哦噢哦没有时间浪费那么我们开始吧。

youdao

So, if we think about the bonds that are forming -- oh I see our TAs are here, so you can start handing them out, because we have two minutes left to go.

如果我们考虑所成的键-,我看到助教们都来了，你们可以开始发讲义了，我们还有两分钟就下课了。

麻省理工公开课 - 化学原理课程节选

It was just a bad joke and he kind of, if the context means anything, I mean, look, this was a back-and-forth, trash talking brinksmanship for while, and then Sergio Garcia goes and does this and everything is sort of like, oh god, here we go again.

NPR: Price Too High For Being World's Top Military Force?