U字開頭的單詞或詞組
unabashedunclaimedundrawunendingupper extremityunit costunlistedUnion of Soviet Socialist Republicsunsightlyunit vectorunattractiveupliftedUBunder the control ofunjustifieduninvitedultimate designunmatchableunderwritingunderreportunderwoodutility powerunadjustedunder footunearthlyultrasonographyunshakenunmarriedunwittingup the riverunder the guidance of...unaffectedunburdenupset stomachurinalunfreezeunit numberunfeasibleurinary bladderunorthodoxunwrittenunwieldy
