I deeply understand how you feel and I heartily sympathize with your situation.

非常理解你的感受，十分同情你的状况。

youdao

I wish I could make you understand how deeply I regret having to do this.

我希望你能明白要这么做我有多么的抱歉。

youdao

I wish I could make you understand how deeply I regret having to do this.

我希望你能明白要这么做我有多么的抱歉。

youdao