我终于理解了她的意思。

I finally ___understand what she means.

她理解我失去亲人后的痛苦。

She ___understands the pain I feel after losing a loved one.

根据她的表情，我理解她对这个消息感到很惊讶。

From her expression, I ___understand she was surprised by the news.

我明白这个决定是最终的了。

I ___understand this decision is final.

她精通法语，能够阅读原版小说。

She ___understands French well enough to read novels in the original.