laboriously
🇺🇸
/ləˈbɔːriəsli/
🇬🇧
/ləˈbɔːriəsli/
working very hard and slowly, taking a lot of effort
She laboriously proofread the document to ensure it was free from errors.
그녀는 문서를 치밀하게 교정하여 오류가 없도록 했습니다.