X字开头的单词或词组
xylolXPSxenograftxenopsinxistorxanthan gumX-sectionXimeniaXMPX-filmX RemotexanthinxylanX-componentxerotripsisxenophobiaxylocarpxenophoniaxenophobeXANESXNSx raysxerosinx-ray platesx-ray tubexyleninxtalXmodemxanthousxanthoproteic indicesXenopusxylonxantho-X-ray filmxanthalinexerophytexiphinxanthorrhoeaxenolXinhuaXEDITxanthate