painfully
/ˈpeɪnfʊlɪ/adverb
1- in a painful manner or to a painful degree痛苦地; 困难地：
she coughed painfully.
她痛苦地咳嗽。
1.1
- as submodifier(with reference to something bad) exceedingly; acutely极度地; 剧烈地：
progress was painfully slow.
进展令人难以忍受地缓慢。