really; in fact
真正地；事實上
in truth, she was more than a little unhappy.
實際上，她很不高興。
to be frank (used especially when making an admission or when expressing an unwelcome or controversial opinion)
坦率地說，說老實話，實話實說（尤用于表示承認某事或表示令人不快或有爭議的看法）
I think, if truth be told, we were all a little afraid of him.
說老實話，我認為我們當(dāng)時都有點兒怕他。
used to emphasize the absolute veracity of a statement
［用于強調(diào)所言絕對真實可靠］（本人所述）完全屬實，毫無保留，絕對可靠