U字開頭的單詞或詞組
unfamiliaruglifyur-unleashunanimouslyunloadundounreachableunderlieutmostunemploymentunwaveringuprightunusuallyumpireurge sb to do sthunnecessaryundeniableURLupliftU.N.urethraUtopiaunder the tableutiliseunclearunwiseuniversal grammarurethralutaunearned revenueU.S.unacceptableunder fireunpleasantusherunderstoodup frontup and downunanimousundo typingush



















