regret

n. 遺憾、後悔、悔恨、抱歉、歉意

vt. 為…感到遺憾、後悔、惋惜、懊悔、抱歉

vi. 感到抱歉

學術名詞

• 遺憾損失：統計學

英文釋義

1. sadness associated with some wrong done or some disappointment
2. feel remorse for; feel sorry for; be contrite about
3. feel sad about the loss or absence of
4. decline formally or politely