sincerely

例句：

1. 1.He sincerely apologized for his mistake.
   他真诚地为自己的错误道歉。
2. 2. She sincerely hopes that everything will turn out well.
   她衷心希望一切会好起来。
3. 3.The teacher sincerely cares about each student's progress.
   老师真心关心每个学生的进展。