幕后生活（指政党）

“behind-the-scenes”life

• ultra-
• ultramarine
• ultramontane
• ultra-sonic
• ultraviolet
• ultra vires
• ululate
• umber
• umbilical
• umbind
• umbrage
• umbrella
• umheard
• umlaut
• ummoved
• umpire
• umpteen
• umstrung
• 'un
• un-
• unabashed
• unabated
• unable
• unaccompanied
• unaccountable