She was unable to grasp how to do it.

她弄不明白这事该怎么做。

《牛津词典》

Behind the story is unable to grasp their own can not control.

身后的故事是他们自己无法把握也无法控制的。

youdao

Such a simple concept, but one that many are still unable to grasp.

如此简单的一个概念，但是至今许多人还是无法明白。

youdao

They are unable to grasp the fact that I use the internet for my business.

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Grove realized shortly before a speech that he would be unable to grasp the pages and turn them.

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We've grown too accustomed to seeing stubborn greats unable to grasp that the house lights have been turned on.

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