I can't figure out how to do this.

我弄不懂怎样做这件事。

《牛津词典》

I can't figure out the rules of football.

我不懂足球的规则。

youdao

What I can't figure out is how she survived.

我不明白的是她是怎么活下来的。

youdao

And here's a little trick -- and again, we promised to point -- out little tricks of the trade -- if I know I want to execute the last command I typed that started with an m, bangm will actually figure out what that command was and redo it for me so I don't have to figure it out, or you can go back in time in a terminal window.

这里有个小技巧--此外，我们许诺指出行业中的,一些小技巧-,如果我知道我想执行我写入的上一个命令,是以m开头的，！m会明白那个命令是什么,然后为我恢复上次操作,所以我不需要明白它，或者你可以回到,那个终端窗口。

哈佛公开课 - 计算机科学课程节选

However, even with all my technology expertise I still get frustrated from time to time - there are things I simply can't figure out or don't know how to do.

BBC: Three missing ingredients of small business technology

"I think when you have close to 25 immunologists look at you and they can't figure out what's causing the problem, you can call that pretty rare, " she says.

CNN: iReport: 'Billy's Disease' baffles doctors

And I tried to figure out, well, how many medals are we supposed to win, because we can't win them all.

NPR: Using Economics To Predict Olympic Medal Standings