失敬

❶show inadequacy
❷be sorry;Excuse me for my lack of manners
未能陪同你参观，～了。I’m awfully sorry for not being able to accompany you in your visit.

• undid
• undies
• undignified
• undischarged
• undo
• undock
• undomesticated
• undooked-for
• undoubted
• undreamed
• undress
• undue
• undulate
• undying
• unearned
• unearth
• unearthly
• uneasy
• uneaten
• uneducated
• unemployable
• unemployed
• unemployment
• unending
• unendurable