dreadfully
adverb mainly UK uk/ˈdred.fəl.i/ us/ˈdred.fəl.i/
(BADLY)
非常糟糕地;恶劣地
extremely badly
She behaved dreadfully. 她的行为非常恶劣。
(VERY)
mainly UK非常，极端地
extremely
He was dreadfully upset. 他非常苦恼。
I'm dreadfully sorry - I really am. 我非常抱歉——真的非常抱歉。