I want him back, but I just don't know how to go about it.

我希望他回来，可我就是不知道怎么去做这件事。

《柯林斯英汉双解大词典》

I have a not favorite person, but I don't know how to go to refuse.

我有不喜欢的人，但我不知道如何去拒绝。

youdao

But, you just don't know how to go from 'just friends' into an intimate relationship with her.

但是，你却不知道如何从“普通朋友”变成亲密的男女朋友。

youdao

I don't even know what you're... How... What are you talking about?You want me to go away? I can't...

VOA: standard.other

I don't know, I didn't go to business school so I'm not exactly sure how it works.

我不知道，我没在商学院上过学，所以我也不清楚它到底是怎样的。

哥伦比亚的氛围 - SpeakingMax英语口语达人

"I don't know how I'm going to go on without her, " he said.

WSJ: Linda Pugach, blinded in infamous NYC crime, dies

Go to GottaRegister.com. (Applause.) If you don't know how to vote -- maybe you're 17, turning 18, first time -- go to GottaVote.com. (Applause.) If you're already registered and you're already going to be voting, then you've got to grab your friends, you've got to grab your neighbors, you've got to grab your cousins, your aunts and your uncles -- (applause) -- you've got to corner your -- and your grandparents. (Laughter.) You've got to talk to your co-workers.

WHITEHOUSE: The White House

And I was lucky enough to get some of those tapes from my Webmaster, who has - I don't know how she got them - but, again, go to carlysimon.com if you want to get them.

NPR: Carly Simon's 'Never Been Gone'