X字開頭的單詞或詞組
xyloketosexylopropamineX-ray diffractometryxenon oxidexerosis superficialisxanthomatousxeonxylem raysx-ray dermatitisxanthic amidexanthoma disseminatumxanthomyelomaX-ray photon spectroscopyx-ray spectrumxanthematinxanthic disulfidexanthochromic jaundicexenoparasitexerophthalmusxiphisternal crunching soundxanthemia testxanthogenic acidxanthoma diabeticorumXiphophorus testxanthopiaxrayxylene fluoridexylenol resinx-ray goniometerxanthogenamidexylylene cyanidesxylenobacillinxylographicxylol muskxanthoma multiplexxanthosis diabeticaXanthoxylum piperitumX-ray spectrometerxanthic calculusxylidinic acidxanthoxylinxp