bitterly

bitterly
adv in a bitter way 苦苦地; 惨痛地
    be bitterly disappointed 伤心失望
    She wept bitterly. 她哭得很伤心.
    He is bitterly (ie very deeply) opposed to nuclear weapons. 他强烈地反对核武器.

牛津英汉双解词典