U字開頭的單詞或詞組
unabatedunintendedU.s. dollarundue influenceupper-classunchangeableupsurgeullageunstructureduninhabitedunspeakableunimpressedundyingunforgivableundesiredunreadunanimityunceasingunhingeuntappedurchinunheard-ofunflinchingunsteadilyUDPuricunit setunpackedunfundedup in the airunderwriteulnaruser accountundeservedUSAFunreadableunfoundedupmostundercoatUNCunforeseenunpopular



















