I've read the whole book from beginning to end and still can't understand it.

我把整本书从头到尾看了一遍，但还是没看懂。

《牛津词典》

She could not understand it.

她无法理解。

youdao

I can quite understand it.

我很能理解。

youdao

That way almost anyone across the country -- or across the world -- can understand it.

VOA: special.2011.03.07

If I understand it correctly, science as science insofar as its belike scientific methodology, he needs to be defended.

如果我没有弄错的话，就论文所用的科学方法本身而言,就论文所用的科学方法本身而言，作者的立场应该受到维护。

普林斯顿公开课 - 人性课程节选

But you know, I understand it's a challenge when you're coming from a language that doesn't have any concept of an article.

但是，我能够理解当你的母语没有冠词的概念时，它将是一个挑战。

经常犯的失误 - SpeakingMax英语口语达人

"I understand it's a large thing to roll out, so I'm not too upset, " he said.

WSJ: Open to All, New York City Bike Share Copes With Glitches

Duncan Hunter did very well, and he was here, as I understand it, three times.

NPR: Romney Wins Wyoming GOP Caucuses

"None of us understand it, none of us understand any of it, " Mrs Ballard said.

BBC: Fuller family deaths: Aunt's 'sleepless nights'