sincerely
🇬🇧/sɪnˈsɪəli/ 🇺🇸/sɪnˈsɪrli/If you say or feel something sincerely, you really mean or feel it, and are not pretending. 诚恳地; 真诚地
adverb [方式副词] 由衷地，真诚地
"Congratulations," he said sincerely. “ 祝贺，”他真诚地说道。
"Congratulations," he said sincerely. “ 祝贺，”他真诚地说道。