X字开头的单词或词组
xenon fluoridexerodermosteosisxiphopagotomyxylenesulfonyl chlorideXanthoxylum bungeixanthyliumxipamidexiphoiditisxxiix-ray thickness gagexanthokyanopyxanthopsydraciaxenon oxyfluoridexviiixanthaematinxemeX-parameterxanthene ketonexanthine dehydrogenasexeranticxiphocostal ligamentsxlphisternumxanthorrhizaXerox Network Servicexylenol resinX-ray energy spectrometerXanthium L.xanthoxylenexylylene alcoholX-ray absorption analysisxchromosomeXenopus testX,2-distributionx-ray dectecting devicex-y switchxerosis cutisxylonic acidxenenthesisxeroradiographyx-ray sicknessXanthochymus pictoriusXMS memory
