X字開頭的單詞或詞組
xerophytexanthatexiphinxanthophyllXinhuaxuxxvxanthalinexanthorrhoeaxanthenexenophilexenolX-coordinatexivxystXEDITxixX-ray picturexanthinexerographyXenopus laevisxtX particlexlxysmaxylotomyx-ray cameraxylophonistxanthininxanthomaxylylXENIXxenodiagnosisX-ray diffractionxiixanthomatosisX directionxanthippexerosisx-kneexenic acidxanthic



















