Don't worry, I've seen it all.

不要着急，我都已经看过这些了。

youdao

Not sure I've seen it all.

我不确定我看到这所有的。

youdao

And now I've seen this, I've seen it all.

可是现在，我看到了，我看到了这一切。

youdao

OK, you say, come on, I've seen these all the time. Every time I type something into my program, it does one of these things, right?

好了，或者你要说,我总是能看见这些,每一次我在程序里输入一些内容的时候？

麻省理工公开课 - 计算机科学及编程导论课程节选

I've seen it on, like, YouTube, like the bucket drummers where they do all of their stick tricks and stuff. Um,

我在YouTube上看过的，鼓手们使劲浑身解数，运用了所有的敲打技艺。

街头艺术 - SpeakingMax英语口语达人

"I've seen it all, all that rat-race stuff, the arms-race stuff, " said Mr. Nye.

WSJ: From Patents to Memberships, Coffee Shops Offer New Perks

"Now I've seen it all, " he said.

WSJ: Birch syrup explored as add-on to maple industry

"I've seen it all, " he said.

CNN: Unusual -- and legal -- ways to make money